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Triceratiaceae (Schütt) Lemmermann, 1899

149049  (urn:lsid:marinespecies.org:taxname:149049)

accepted
Family
Genus Amphitetras C.G. Ehrenberg, 1840
  » Species Amphitetras antediluviana Ehrenberg, 1840
    » Variety Amphitetras antediluviana var. antediluviana Ehrenberg, 1840 (uncertain, unassessed)
    » Variety Amphitetras antediluviana var. antediluviana sensu Peragallo & Peragallo, 1901 (uncertain, unassessed)
    » Variety Amphitetras antediluviana var. beta W. Smith, 1855 (uncertain, unassessed)
    » Variety Amphitetras antediluviana var. cruciformis Tempère & Peragallo, 1911 (uncertain, unassessed)
    » Variety Amphitetras antediluviana var. gamma H. Peragallo in Pelletan (uncertain, unassessed)
    » Variety Amphitetras antediluviana var. minor Peragallo & Peragallo, 1902 (uncertain, unassessed)
    » Variety Amphitetras antediluviana var. pentagonalis H. Peragallo in Pelletan, 1889 (uncertain, unassessed)
  » Species Amphitetras grevillei De Toni
    » Variety Amphitetras grevillei var. grevillei De Toni, 1894 (uncertain, unassessed)
    » Variety Amphitetras grevillei var. parvula ‘Greville' Mills, 1935 (uncertain, unassessed)
  » Species Amphitetras ornata Shadbolt
    » Variety Amphitetras ornata var. hirsuta Castracane, 1886 (uncertain, unassessed)
    » Variety Amphitetras ornata var. ornata Shadbolt, 1854 (uncertain, unassessed)
  » Species Amphitetras quadrinotatum (Ehrenberg, Schmidt) Prema, P. & T. V. Desikachary, 2012 †
  » Species Amphitetras acutangula (Greville) De Toni, 1894 represented as Triceratium acutangulum var. acutangulum Greville, 1864
  » Species Amphitetras anderssonii (Cleve) De Toni, 1894 represented as Triceratium anderssonii Cleve, 1881
  » Species Amphitetras atlantica (Castracane) De Toni, 1894 represented as Triceratium atlanticum Castracane, 1886
  » Species Amphitetras balearica (Cleve & Grunow in Cleve) De Toni, 1894 represented as Triceratium balearicum f. balearicum Cleve & Grunow in Cleve, 1881
    » Variety Amphitetras balearica var. leudugeri De Wildeman, 1897 (uncertain, unassessed)
  » Species Amphitetras bicornis (Cleve) De Toni, 1894 † represented as Pseudictyota bicorne (Cleve) P.A. Sims & D. M. Williams in Sims et al., 2018 †
  » Species Amphitetras blandita (Greville) De Toni, 1894 represented as Triceratium blanditum Greville, 1861
  » Species Amphitetras campechiana (Grunow) De Toni, 1894 represented as Triceratium campechianum Grunow in Cleve, 1878
  » Species Amphitetras canalifera (Brun) De Toni, 1894 represented as Triceratium canalifer Brun, 1891
  » Species Amphitetras coerulescens (Pantocsek) De Toni, 1894 represented as Triceratium coerulescens Pantocsek, 1892
  » Species Amphitetras conciliata (Pantocsek) De Toni, 1894 represented as Triceratium conciliatum var. conciliatum Pantocsek, 1889
  » Species Amphitetras cornuta (Greville) De Toni, 1894 represented as Triceratium cornutum R.K.Greville †
  » Species Amphitetras dutertrei (Pantocsek & Tempère) De Toni, 1894 represented as Triceratium dutertrei Pantocsek & Tempère in Pantocsek, 1889 †
  » Species Amphitetras inconspicua (Greville) De Toni, 1894 represented as Triceratium inconspicuum Greville, 1861 †
  » Species Amphitetras ingloria (Greville) De Toni, 1894 represented as Triceratium inglorium Greville, 1865
  » Species Amphitetras intermedia (Grove & Sturt) De Toni, 1894 represented as Triceratium intermedium Grove & Sturt, 1887
  » Species Amphitetras kusnetzkiana (Pantocsek) De Toni, 1894 represented as Triceratium kusnetzkianum Pantocsek, 1889
  » Species Amphitetras lanceolata (Pantocsek) De Toni, 1894 represented as Triceratium lanceolatum Pantocsek, 1889
  » Species Amphitetras lata (Greville) De Toni, 1894 represented as Triceratium latum var. latum Greville, 1865
  » Species Amphitetras margaritifera (Cleve) De Toni, 1894 represented as Triceratium margaritiferum Cleve, 1881
  » Species Amphitetras oculata (Greville) De Toni, 1894 represented as Triceratium oculatum f. oculatum Greville, 1864
  » Species Amphitetras perryana (Truan y Luard & Witt) De Toni, 1894 represented as Triceratium perryanum Truan y Luard & Witt, 1888
  » Species Amphitetras pethoei (Pantocsek) De Toni, 1894 represented as Triceratium pethoei Pantocsek, 1889
  » Species Amphitetras pulvillus (Castracane) De Toni, 1894 represented as Triceratium pulvillus Castracane, 1886
  » Species Amphitetras quadrangularis (Greville) De Toni, 1894 represented as Triceratium quadrangulare Greville, 1865
  » Species Amphitetras quadricornis (Greville) De Toni, 1894 represented as Triceratium quadricorne Greville, 1865
  » Species Amphitetras rectangularis (Grove & Sturt) De Toni, 1894 represented as Triceratium rectangulare Grove & Sturt, 1887
  » Species Amphitetras sturtii (Pantocsek) De Toni, 1894 represented as Triceratium sturtii Pantocsek, 1886
  » Species Amphitetras tetragona (Pantocsek) De Toni, 1894 represented as Triceratium tetragonum Pantocsek, 1889
  » Species Amphitetras unguiculata (Greville) De Toni, 1894 represented as Triceratium unguiculatum Greville, 1864
  » Species Amphitetras zonatulata (Greville) De Toni, 1894 represented as Triceratium zonatulatum f. zonulatum Greville, 1865
  » Species Amphitetras adriatica Kützing, 1845 (uncertain, unassessed)
  » Species Amphitetras alternans H.L. Smith in Christian, 1887 (uncertain, unassessed)
  » Species Amphitetras antediluviana sensu? Brightwell, 1859 (uncertain, unassessed)
  » Species Amphitetras arisata Shadbolt, 1854 (uncertain, unassessed)
  » Species Amphitetras cruciata Janisch & Rabenhorst, 1863 (uncertain, unassessed)
  » Species Amphitetras crucifera Kitton in Ralfs in Pritchard, 1861 (uncertain, unassessed)
  » Species Amphitetras crux Brightwell, 1859 (uncertain, unassessed)
  » Species Amphitetras cuspidata L.W. Bailey, 1862 (uncertain, unassessed)
  » Species Amphitetras elegans Greville, 1866 (uncertain, unassessed)
  » Species Amphitetras excavata W. Smith, 1855 (uncertain, unassessed)
  » Species Amphitetras favosa Harvey & J.W. Bailey, 1853 (uncertain, unassessed)
  » Species Amphitetras gemmata Ehrenberg, 1858 (uncertain, unassessed)
  » Species Amphitetras godeffroyi ‘Grunow' Mills, 1935 (uncertain, unassessed)
  » Species Amphitetras graeffeiana Witt, 1873 (uncertain, unassessed)
  » Species Amphitetras lamprodictya Ehrenberg, 1860 (uncertain, unassessed)
  » Species Amphitetras leptotis Ehrenberg, 1862 (uncertain, unassessed)
  » Species Amphitetras mamillaris Ehrenberg, 1872 (uncertain, unassessed)
  » Species Amphitetras minuta Greville, 1861 (uncertain, unassessed)
  » Species Amphitetras mortimerii ‘Habirshaw', 1877 (uncertain, unassessed)
  » Species Amphitetras nobilis Greville, 1865 (uncertain, unassessed)
  » Species Amphitetras parallela Ehrenberg, 1840 (uncertain, unassessed)
  » Species Amphitetras parvula Greville, 1863 (uncertain, unassessed)
  » Species Amphitetras parvula Janisch & Rabenhorst, 1863 (uncertain, unassessed)
  » Species Amphitetras producta Greville, 1862 (uncertain, unassessed)
  » Species Amphitetras punctata Greville, 1862 (uncertain, unassessed)
  » Species Amphitetras radiata Greville, 1862 (uncertain, unassessed)
  » Species Amphitetras radiatopunctata Missuna, 1914 (uncertain, unassessed)
  » Species Amphitetras sarniensis ‘Greville' Chase (uncertain, unassessed)
  » Species Amphitetras subrotundata Janisch in Schmidt et al., 1886 (uncertain, unassessed)
  » Species Amphitetras tessellata Shadbolt, 1854 (uncertain, unassessed)
  » Species Amphitetras wilkesii Harvey & J.W. Bailey, 1854 (uncertain, unassessed)
Genus Auliscus C.G. Ehrenberg, 1843
  » Species Auliscus albidus J.-J.Brun
    » Variety Auliscus albidus var. albidus Brun in Schmidt et al., 1892 (uncertain, unassessed)
    » Variety Auliscus albidus var. baccata Brun in Schmidt et al., 1892 (uncertain, unassessed)
  » Species Auliscus alienus S.L.VanLandingham
  » Species Auliscus ambiguus Greville
    » Variety Auliscus ambiguus var. ambiguus Greville, 1863 (uncertain, unassessed)
    » Variety Auliscus ambiguus var. major ‘Rattray' Mills, 1933 (uncertain, unassessed)
    » Variety Auliscus ambiguus var. multiclava Brun in Brun & Tempère, 1889 (uncertain, unassessed)
  » Species Auliscus biddulphia F.Kitton
    » Variety Auliscus biddulphia var. biddulphia Kitton in Schmidt et al., 1881 (uncertain, unassessed)
    » Variety Auliscus biddulphia var. dentata Rattray, 1888 (uncertain, unassessed)
    » Variety Auliscus biddulphia var. prominens Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus decoratus J.Rattray
    » Variety Auliscus decoratus var. affinis Rattray, 1888 (uncertain, unassessed)
    » Variety Auliscus decoratus var. decoratus Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus elaboratus J.Ralfs ex Greville
    » Forma Auliscus elaboratus f. minor Brun, 1896 (uncertain, unassessed)
    » Variety Auliscus elaboratus var. elaboratus Ralfs in Greville, 1863 (uncertain, unassessed)
    » Variety Auliscus elaboratus var. tetraspadix Brun, 1896 (uncertain, unassessed)
  » Species Auliscus elegans Greville
    » Variety Auliscus elegans var. californica (Grunow in Schmidt et al.) Rattray, 1888 represented as Auliscus grunovii var. californica Grunow in Schmidt et al., 1886
    » Variety Auliscus elegans var. flammula (Tempère & Brun in Brun & Tempère) De Toni, 1894 represented as Auliscus grunovii var. flammula Tempère & Brun in Brun & Tempère, 1889
    » Variety Auliscus elegans var. grunovii (Schmidt in Schmidt et al.) Rattray, 1888 represented as Auliscus grunovii var. grunovii Schmidt in Schmidt et al., 1875
    » Variety Auliscus elegans var. coloradica H. Peragallo in Tempère & Peragallo, 1909 (uncertain, unassessed)
    » Variety Auliscus elegans var. elegans Greville, 1863 (uncertain, unassessed)
    » Variety Auliscus elegans var. pantocseckii Forti, 1913 (uncertain, unassessed)
    » Variety Auliscus elegans var. subpunctata Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus hardmanianus Greville
    » Variety Auliscus hardmanianus var. bifurcata Rattray, 1888 (uncertain, unassessed)
    » Variety Auliscus hardmanianus var. futilis Rattray, 1888 (uncertain, unassessed)
    » Variety Auliscus hardmanianus var. hardmanianus Greville, 1866 (uncertain, unassessed)
    » Variety Auliscus hardmanianus var. haytiana Truan & Witt, 1888 (uncertain, unassessed)
    » Variety Auliscus hardmanianus var. labyrinthula Rattray, 1888 (uncertain, unassessed)
    » Variety Auliscus hardmanianus var. maculosus Long, Fuge & Smith, 1946 (uncertain, unassessed)
    » Variety Auliscus hardmanianus var. obscura Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus intermedius E.Grove & G.Sturt
    » Variety Auliscus intermedius var. intermedius Grove & Sturt in litt. ex Rattray, 1888 (uncertain, unassessed)
    » Variety Auliscus intermedius var. simplex Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus interruptus J.Rattray
    » Variety Auliscus interruptus var. interruptus Rattray, 1888 (uncertain, unassessed)
    » Variety Auliscus interruptus var. sparsa Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus johnsonianus Greville
  » Species Auliscus loczyi Pantocsek
    » Forma Auliscus loczyi f. loczyi Pantocsek, 1892 (uncertain, unassessed)
    » Forma Auliscus loczyi f. major Forti in Tempère & Peragallo, 1909 (uncertain, unassessed)
    » Forma Auliscus loczyi f. major Forti, 1913 (uncertain, unassessed)
  » Species Auliscus moronensis Greville
    » Variety Auliscus moronensis var. moronensis Greville, 1864 (uncertain, unassessed)
    » Variety Auliscus moronensis var. pruinosus E.Weissflog (uncertain, unassessed)
    » Variety Auliscus moronensis var. quadriocellata Tempère & Peragallo, 1912 (uncertain, unassessed)
  » Species Auliscus normanianus Greville
    » Variety Auliscus normanianus var. bioculata Tempère & Peragallo, 1915 (uncertain, unassessed)
    » Variety Auliscus normanianus var. normanianus Greville, 1864 (uncertain, unassessed)
  » Species Auliscus oamaruensis Grove & Sturt, 1887
    » Variety Auliscus oamaruensis var. madagascarensis Tempère in Bergon et al., 1890 (uncertain, unassessed)
    » Variety Auliscus oamaruensis var. oamaruensis Grove & Sturt, 1887 (uncertain, unassessed)
  » Species Auliscus peruvianus (F.Kitton) Greville
  » Species Auliscus pruinosus Bailey
    » Variety Auliscus pruinosus var. carpentariae Grunow in Schmidt et al., 1875 (uncertain, unassessed)
    » Variety Auliscus pruinosus var. confluens Grunow in Cleve & Möller, 1879 (uncertain, unassessed)
    » Variety Auliscus pruinosus var. lorcana Azpeitia Moros, 1911 (uncertain, unassessed)
    » Variety Auliscus pruinosus var. nankoorensis Desikachary & Ranjitha Devi in Desikachary, 1986 (uncertain, unassessed)
    » Variety Auliscus pruinosus var. pruinosus J.W. Bailey, 1854 (uncertain, unassessed)
    » Variety Auliscus pruinosus var. robusta Grunow in Schmidt et al., 1890 (uncertain, unassessed)
    » Variety Auliscus pruinosus var. sansibarica Grunow in Schmidt et al., 1875 (uncertain, unassessed)
    » Variety Auliscus pruinosus var. subreticulata Grunow in Schmidt et al., 1886 (uncertain, unassessed)
    » Variety Auliscus pruinosus var. zanzibarica Grunow in Schmidt et al., 1875 (uncertain, unassessed)
  » Species Auliscus pulvinatus Cleve
    » Forma Auliscus pulvinatus f. apiculata Pantocsek, 1886 (uncertain, unassessed)
    » Forma Auliscus pulvinatus f. inermis Pantocsek, 1886 (uncertain, unassessed)
      » Subforma Auliscus pulvinatus f. inermis triocellata Pantocsek, 1886 (uncertain, unassessed)
    » Forma Auliscus pulvinatus f. pulvinatus Cleve, 1885 (uncertain, unassessed)
    » Variety Auliscus pulvinatus var. le-tourneuri Brun in Brun et al., 1891 (uncertain, unassessed)
  » Species Auliscus punctatus Bailey
    » Variety Auliscus punctatus var. carpentariae (Grunow in Schmidt et al.) Rattray, 1888 represented as Auliscus pruinosus var. carpentariae Grunow in Schmidt et al., 1875
    » Forma Auliscus punctatus f. monocula Hardman ex Rattray, 1888 (uncertain, unassessed)
    » Forma Auliscus punctatus f. striolata Rattray, 1888 (uncertain, unassessed)
    » Variety Auliscus punctatus var. abrupta Rattray, 1888 (uncertain, unassessed)
    » Variety Auliscus punctatus var. circumducta Rattray, 1888 (uncertain, unassessed)
    » Variety Auliscus punctatus var. punctatus J.W. Bailey, 1854 (uncertain, unassessed)
    » Variety Auliscus punctatus var. robusta Truan & Witt, 1888 (uncertain, unassessed)
  » Species Auliscus reticulatus Greville
  » Species Auliscus rhipis A.W.F.Schmidt
    » Variety Auliscus rhipis var. rhipis Schmidt in Schmidt et al., 1875 (uncertain, unassessed)
    » Variety Auliscus rhipis var. triocellata Tempère & Peragallo, 1913 (uncertain, unassessed)
  » Species Auliscus splendidus J.Rattray
    » Variety Auliscus splendidus var. minor Tempère & Peragallo, 1908 (uncertain, unassessed)
    » Variety Auliscus splendidus var. splendidus Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus stoeckhardtii va.subpunctata J.Rattray
    » Variety Auliscus stoeckhardtii var. aspera Grove in Schmidt et al., 1896 (uncertain, unassessed)
    » Variety Auliscus stoeckhardtii var. flavescens Pantocsek, 1892 (uncertain, unassessed)
    » Variety Auliscus stoeckhardtii var. grandis Rattray, 1888 (uncertain, unassessed)
    » Variety Auliscus stoeckhardtii var. inconspicua Rattray, 1888 (uncertain, unassessed)
    » Variety Auliscus stoeckhardtii var. stoeckhardtii Janisch, 1861 (uncertain, unassessed)
    » Variety Auliscus stoeckhardtii var. subpunctata Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus subreticulatus (Grunow) J.Rattray
  » Species Auliscus trigemmis A.W.F.Schmidt
    » Variety Auliscus trigemmis var. robusta Brun in Brun & Tempère, 1889 (uncertain, unassessed)
    » Variety Auliscus trigemmis var. trigemmis Schmidt in Schmidt et al., 1888 (uncertain, unassessed)
  » Species Auliscus aucklandicus (Grunow) Chase, 1885 represented as Auliscus caelatus var. auklandica Grunow in A. Schmidt et al., 1881
  » Species Auliscus barbadensis Greville, 1865 represented as Fenestrella barbadensis Greville, 1863 †
  » Species Auliscus craterifer (Brun) Tempère & Peragallo, 1912 represented as Auliscus johnsonianus var. craterifer Brun, 1896
  » Species Auliscus debyi (Leuduger-Fortmorel) VanLandingham, 1967 represented as Pseudauliscus debyi Leuduger-Fortmorel, 1879
  » Species Auliscus diffusus (Rattray) VanLandingham, 1967 represented as Pseudauliscus diffusus Rattray, 1888
  » Species Auliscus fulvus (W. Smith) Rabenhorst, 1864 represented as Eupodiscus fulvus W. Smith, 1853
  » Species Auliscus hirsutus (Rattray) VanLandingham, 1967 represented as Pseudauliscus hirsutus Rattray, 1888
  » Species Auliscus letoniensis (Janisch) VanLandingham, 1967 represented as Pseudauliscus letoniensis Janisch in Schmidt et al., 1881
  » Species Auliscus petitii (Leuduger-Fortmorel) Schütt in Engler & Prantl, 1896 represented as Pseudauliscus petitii Leuduger-Fortmorel, 1879
  » Species Auliscus polystigma (Ehrenberg) Ehrenberg, 1844 represented as Coscinodiscus polystigma Ehrenberg, 1843
  » Species Auliscus polystigmus (Ehrenberg) Ralfs in Pritchard, 1861 represented as Coscinodiscus polystigma Ehrenberg, 1843
  » Species Auliscus robustus (Truan & Witt) Rattray, 1888 represented as Auliscus punctatus var. robusta Truan & Witt, 1888
  » Species Auliscus rotatus (Rattray) VanLandingham, 1967 represented as Pseudauliscus rotatus Rattray, 1888
  » Species Auliscus sculptus (W.Smith) Brightwell, 1860 represented as Eupodiscus sculptus W.Smith, 1853
    » Variety Auliscus sculptus var. caelata (J.W. Bailey) Van Heurck, 1896 represented as Auliscus caelatus f. caelatus J.W. Bailey, 1854
    » Variety Auliscus sculptus var. constrictus (J.Rattray) T.V.Desikachary, 1888 represented as Auliscus caelatus var. constricta J.Rattray, 1888
    » Variety Auliscus sculptus var. nankoorensis (Desikachary & Ranjitha Devi in Desikachary) Desikachary, 1989 represented as Auliscus caelatus var. nankoorensis Desikachary & Ranjitha Devi in Desikachary, 1986
    » Variety Auliscus sculptus var. rhipis (A. Schmidt) Giffen, 1975 represented as Auliscus rhipis var. rhipis Schmidt in Schmidt et al., 1875
    » Variety Auliscus sculptus var. sculptus (W. Smith) Ralfs in Pritchard, 1861 represented as Eupodiscus sculptus W.Smith, 1853
    » Variety Auliscus sculptus var. strigillatus (A. Schmidt) Giffen, 1975 represented as Auliscus caelatus var. strigillata Schmidt in Schmidt et al., 1875
    » Variety Auliscus sculptus var. major Desikachary, 1989 (uncertain, unassessed)
    » Variety Auliscus sculptus var. permagna Witt in Schmidt et al., 1888 (uncertain, unassessed)
    » Variety Auliscus sculptus var. punctata ‘Mereschkowsky' Mills, 1933 (uncertain, unassessed)
    » Variety Auliscus sculptus var. punctulata Mereschkowsky, 1902 (uncertain, unassessed)
    » Variety Auliscus sculptus var. tripodiscus Brockmann, 1914 (uncertain, unassessed)
  » Species Auliscus temperei (Pantocsek) VanLandingham, 1967 represented as Pseudocerataulus temperei Pantocsek, 1889
  » Species Auliscus caelatus Bailey, 1854 accepted as Auliscus sculptus (W.Smith) Brightwell, 1860 (synonym)
    » Forma Auliscus caelatus f. trypodiscus (Brockmann) Cleve-Euler, 1951 represented as Auliscus sculptus var. tripodiscus Brockmann, 1914
    » Variety Auliscus caelatus var. gigas (Ehrenberg) Walker & Chase, 1886 represented as Auliscus gigas Ehrenberg, 1854
    » Variety Auliscus caelatus var. rhipis (Schmidt in Schmidt et al.) Peragallo & Peragallo, 1902 represented as Auliscus rhipis var. rhipis Schmidt in Schmidt et al., 1875
    » Forma Auliscus caelatus f. caelatus J.W. Bailey, 1854 (uncertain, unassessed)
    » Forma Auliscus caelatus f. major Schmidt in Schmidt et al., 1881 (uncertain, unassessed)
    » Forma Auliscus caelatus f. quadriocellata Grunow in Rattray, 1888 (uncertain, unassessed)
    » Forma Auliscus caelatus f. triocellata Pantocsek, 1886 (uncertain, unassessed)
    » Variety Auliscus caelatus var. auklandica Grunow in A. Schmidt et al., 1881 (uncertain, unassessed)
    » Variety Auliscus caelatus var. constricta J.Rattray, 1888 (uncertain, unassessed)
    » Variety Auliscus caelatus var. delicatula Rattray, 1888 (uncertain, unassessed)
    » Variety Auliscus caelatus var. dissolutus Halden ex Cleve-Euler, 1951 (uncertain, unassessed)
    » Variety Auliscus caelatus var. gigas Peragallo & Peragallo, 1902 (uncertain, unassessed)
    » Variety Auliscus caelatus var. gigas sensu Walker & Chase, 1886 (uncertain, unassessed)
    » Variety Auliscus caelatus var. gigas (Ehrenberg) F.W. Mills, 1933 (uncertain, unassessed)
    » Variety Auliscus caelatus var. impressa Rattray, 1888 (uncertain, unassessed)
    » Variety Auliscus caelatus var. latecostata Schmidt in Schmidt et al., 1875 (uncertain, unassessed)
    » Variety Auliscus caelatus var. latecostata H. Peragallo in H. Peragallo & M. Peragallo, 1911 (uncertain, unassessed)
    » Variety Auliscus caelatus var. major ‘A. Schmidt' De Toni, 1894 (uncertain, unassessed)
    » Variety Auliscus caelatus var. major Rattray (uncertain, unassessed)
    » Variety Auliscus caelatus var. marmoratus Jurilj, 1957 (uncertain, unassessed)
    » Variety Auliscus caelatus var. mergens Rattray, 1888 (uncertain, unassessed)
    » Variety Auliscus caelatus var. mutabilis Rattray, 1888 (uncertain, unassessed)
    » Variety Auliscus caelatus var. nankoorensis Desikachary & Ranjitha Devi in Desikachary, 1986 (uncertain, unassessed)
    » Variety Auliscus caelatus var. nova H. Peragallo in H. Peragallo & M. Peragallo, 1911 (uncertain, unassessed)
    » Variety Auliscus caelatus var. permagna ‘Witt in Schmidt et al.' according to Mills, 1888 (uncertain, unassessed)
    » Variety Auliscus caelatus var. permagna ‘Witt in Schmidt et al.' according to Mills, 1933 (uncertain, unassessed)
    » Variety Auliscus caelatus var. picta Rattray, 1888 (uncertain, unassessed)
    » Variety Auliscus caelatus var. producta Rattray, 1888 (uncertain, unassessed)
    » Variety Auliscus caelatus var. protuberans Rattray, 1888 (uncertain, unassessed)
    » Variety Auliscus caelatus var. strigillata Schmidt in Schmidt et al., 1875 (uncertain, unassessed)
    » Variety Auliscus caelatus var. tenuis Rattray, 1888 (uncertain, unassessed)
    » Variety Auliscus caelatus var. tripodiscus ‘Brockmann' Mills, 1933 (uncertain, unassessed)
    » Variety Auliscus caelatus var. typicus Cleve-Euler, 1951 (uncertain, unassessed)
  » Species Auliscus accedens Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus actinoptychoides Gleser in Gleser & Posnova, 1964 (uncertain, unassessed)
  » Species Auliscus acutiusculus Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus aenigmus Hanna, 1927 (uncertain, unassessed)
  » Species Auliscus africanus Leuduger-Fortmorel, 1898 (uncertain, unassessed)
  » Species Auliscus altemans H.L. Smith ex Christian, 1887 (uncertain, unassessed)
  » Species Auliscus americanus Ehrenberg, 1854 (uncertain, unassessed)
  » Species Auliscus amoenus Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus antiquus Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus apedatus Rattray, 1889 (uncertain, unassessed)
  » Species Auliscus apellatus ‘Rattray' according to Deby, 1891 (uncertain, unassessed)
  » Species Auliscus asiaticus Brun in Brun & Tempère, 1889 (uncertain, unassessed)
  » Species Auliscus australiensis Greville, 1865 (uncertain, unassessed)
  » Species Auliscus baileyi Greville, 1863 (uncertain, unassessed)
  » Species Auliscus barbadensis Deby, 1891 (uncertain, unassessed)
  » Species Auliscus bonus Hanna, 1932 (uncertain, unassessed)
  » Species Auliscus bourgognei Bergon in Brun, Bergon, Deby & Tempère, 1891 (uncertain, unassessed)
  » Species Auliscus bubo Long, Fuge & Smith, 1946 (uncertain, unassessed)
  » Species Auliscus caballi Schmidt in Schmidt et al., 1875 (uncertain, unassessed)
  » Species Auliscus californicus Brun in Schmidt et al., 1892 (uncertain, unassessed)
  » Species Auliscus caribaeus Cleve ex Schmidt in Schmidt et al., 1881 (uncertain, unassessed)
  » Species Auliscus cellulatus Greville ms, Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus clevei Grunow in Schmidt et al., 1875 (uncertain, unassessed)
  » Species Auliscus coincidens Schmidt in Schmidt et al., 1892 (uncertain, unassessed)
  » Species Auliscus compactus Hustedt in Schmidt et al., 1944 (uncertain, unassessed)
  » Species Auliscus compactus Hustedt ex Simonsen, 1987 (uncertain, unassessed)
  » Species Auliscus compositus A. Schmidt in Schmidt et al., 1875 (uncertain, unassessed)
  » Species Auliscus confluens Grunow in Schmidt et al., 1874 (uncertain, unassessed)
    » Variety Auliscus confluens var. hauckii Pantocsek, 1886 (uncertain, unassessed)
  » Species Auliscus constellatus L.G. Mills, 1881 (uncertain, unassessed)
  » Species Auliscus convolutus Grove in Schmidt, 1892 (uncertain, unassessed)
  » Species Auliscus convolutus Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus craterifer Brun, 1896 (uncertain, unassessed)
  » Species Auliscus crystallinus Brun in Brun & Tempère, 1889 (uncertain, unassessed)
  » Species Auliscus curvatoradiosus Brun, 1895 (uncertain, unassessed)
  » Species Auliscus cylindricus Ehrenberg, 1844 (uncertain, unassessed)
  » Species Auliscus dayii Ross, 1937 (uncertain, unassessed)
  » Species Auliscus dilectus Long, Fuge & Smith, 1946 (uncertain, unassessed)
  » Species Auliscus dissimilis Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus dubius ‘Tempère in collections ?' according to Mills (uncertain, unassessed)
  » Species Auliscus ellipticus Schmidt in Schmidt et al., 1890 (uncertain, unassessed)
  » Species Auliscus exceptus Leuduger-Fortmorel, 1898 (uncertain, unassessed)
  » Species Auliscus eximius Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus expectus ‘Leuduger-Fortmorel' Mills, 1933 (uncertain, unassessed)
  » Species Auliscus febigerii Cleve ms, Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus fenestratus Grove & Sturt, 1887 (uncertain, unassessed)
  » Species Auliscus fenestratus sensu A. Schmidt, 1933 (uncertain, unassessed)
  » Species Auliscus fenestratus sensu A. Schmidt, 1888 (uncertain, unassessed)
  » Species Auliscus fenestratus sensu A. Schmidt, 1888 (uncertain, unassessed)
  » Species Auliscus fenestratus sensu A. Schmidt, 1888 (uncertain, unassessed)
  » Species Auliscus floridanus Boyer, 1920 (uncertain, unassessed)
  » Species Auliscus formosus Leuduger-Fortmorel, 1879 (uncertain, unassessed)
  » Species Auliscus fractus Grove & Kitton in litt. ex Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus freultii ‘Leuduger-Fortmorel' according to Mills (uncertain, unassessed)
  » Species Auliscus fulcratus Schmidt in Schmidt et al., 1890 (uncertain, unassessed)
  » Species Auliscus gigas Ehrenberg, 1854 (uncertain, unassessed)
  » Species Auliscus gigas sensu Grunow in Schmidt et al., 1888 (uncertain, unassessed)
  » Species Auliscus gigas sensu Grunow in Schmidt et al., 1888 (uncertain, unassessed)
  » Species Auliscus gleser Hajós, 1976 (uncertain, unassessed)
  » Species Auliscus gracillimus Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus granulatus ‘J.W. Bailey ms' Habirshaw, 1881 (uncertain, unassessed)
  » Species Auliscus gregorii Janisch, 1861 (uncertain, unassessed)
  » Species Auliscus grevillei Janisch, 1861 (uncertain, unassessed)
  » Species Auliscus grovei Cleve (uncertain, unassessed)
  » Species Auliscus grunovii A.Schmidt, 1875 (uncertain, unassessed)
    » Variety Auliscus grunovii var. californica Grunow in Schmidt et al., 1886 (uncertain, unassessed)
    » Variety Auliscus grunovii var. flammula Tempère & Brun in Brun & Tempère, 1889 (uncertain, unassessed)
    » Variety Auliscus grunovii var. grunovii Schmidt in Schmidt et al., 1875 (uncertain, unassessed)
    » Variety Auliscus grunovii var. pantocsekii Forti in Tempère & Peragallo, 1909 (uncertain, unassessed)
    » Variety Auliscus grunovii var. subpunctata ‘Rattray' Mills, 1933 (uncertain, unassessed)
  » Species Auliscus grunovii sensu Pantocsek, 1886 (uncertain, unassessed)
  » Species Auliscus haradaae Pantocsek, 1892 (uncertain, unassessed)
  » Species Auliscus hauckii Pantocsek, 1886 (uncertain, unassessed)
  » Species Auliscus hendeyi Long, Fuge & Smith, 1946 (uncertain, unassessed)
  » Species Auliscus hungaricus Hajós, 1973 (uncertain, unassessed)
  » Species Auliscus hyalinus Boyer, 1920 (uncertain, unassessed)
  » Species Auliscus incertus Schmidt in Schmidt et al., 1886 (uncertain, unassessed)
  » Species Auliscus inflatus Grove & Sturt, 1887 (uncertain, unassessed)
  » Species Auliscus insignis Cleve, 1881 (uncertain, unassessed)
  » Species Auliscus intercedens Janisch in Schmidt et al., 1875 (uncertain, unassessed)
  » Species Auliscus intestinalis Schmidt in Schmidt et al., 1886 (uncertain, unassessed)
  » Species Auliscus jimboi Pantocsek, 1892 (uncertain, unassessed)
  » Species Auliscus johnsonii ‘A. Schmidt' according to M. Peragallo, 1897 (uncertain, unassessed)
  » Species Auliscus joynsonii Schmidt in Schmidt et al., 1881 (uncertain, unassessed)
  » Species Auliscus kinkeri Schütt, 1896 (uncertain, unassessed)
  » Species Auliscus lacunosus Grove & Sturt, 1887 (uncertain, unassessed)
  » Species Auliscus le-tourneuri Brun in Brun et al., 1891 (uncertain, unassessed)
  » Species Auliscus leudugeri H. Peragallo, 1888 (uncertain, unassessed)
  » Species Auliscus lineatus Grove & Sturt, 1887 (uncertain, unassessed)
  » Species Auliscus lizii ‘Tempère ?' according to Mills (uncertain, unassessed)
  » Species Auliscus lobatus Jurilj, 1957 (uncertain, unassessed)
  » Species Auliscus lucidus Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus luminosus Brun, 1891 (uncertain, unassessed)
  » Species Auliscus lunatus Grove & Sturt in litt. Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus macraeanus Greville, 1863 (uncertain, unassessed)
  » Species Auliscus macraeanus sensu Möller in Schmidt et al., 1875 (uncertain, unassessed)
  » Species Auliscus mediterraneus H. Peragallo & M. Peragallo, 1902 (uncertain, unassessed)
  » Species Auliscus microleion Schmidt in Schmidt et al., 1890 (uncertain, unassessed)
  » Species Auliscus mirabilis Greville, 1863 (uncertain, unassessed)
  » Species Auliscus mutabilis ‘Greville' Wolle, 1890 (uncertain, unassessed)
  » Species Auliscus nanus Schmidt in Schmidt et al., 1875 (uncertain, unassessed)
  » Species Auliscus nebulo-punctatus Leuduger-Fortmorel, 1879 (uncertain, unassessed)
  » Species Auliscus nebulosus Greville, 1863 (uncertain, unassessed)
  » Species Auliscus nervatus Leuduger-Fortmorel, 1898 (uncertain, unassessed)
  » Species Auliscus nitidus Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus nobilis Cleve ms, Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus notatus Greville, 1865 (uncertain, unassessed)
  » Species Auliscus notoensis Ichikawa in Ichikawa, Fuji & Bachmann, 1964 (uncertain, unassessed)
  » Species Auliscus nova-zealandicus Cleve (uncertain, unassessed)
  » Species Auliscus obscurus Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus opulentus Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus ornatus Greville, 1864 (uncertain, unassessed)
  » Species Auliscus ovalis Arnott ex Pritchard, 1861 (uncertain, unassessed)
    » Forma Auliscus ovalis f. minor Grunow in Schmidt, 1888 (uncertain, unassessed)
  » Species Auliscus pacificus ‘Grunow in Schmidt et al.' Mills, 1933 (uncertain, unassessed)
  » Species Auliscus paleaceus Long, Fuge & Smith, 1946 (uncertain, unassessed)
  » Species Auliscus parvulus Greville, 1863 (uncertain, unassessed)
  » Species Auliscus pauper Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus pectinatus Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus philippinarum Mann, 1925 (uncertain, unassessed)
  » Species Auliscus polyphemus Schmidt in Schmidt et al., 1890 (uncertain, unassessed)
  » Species Auliscus praelatus Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus pressus Leuduger-Fortmorel, 1879 (uncertain, unassessed)
  » Species Auliscus priscus Long, Fuge & Smith, 1946 (uncertain, unassessed)
  » Species Auliscus prominens Tempère & Peragallo, 1910 (uncertain, unassessed)
  » Species Auliscus propinquus Grove & Sturt, 1887 (uncertain, unassessed)
  » Species Auliscus pruinosus sensu Schmidt in Schmidt et al., 1875 (uncertain, unassessed)
  » Species Auliscus pulcherrimus Hendey, 1939 (uncertain, unassessed)
  » Species Auliscus punctatus sensu A. Schmidt in A. Schmidt et al., 1886 (uncertain, unassessed)
  » Species Auliscus punctulatus Grunow in Schmidt et al., 1875 (uncertain, unassessed)
  » Species Auliscus quadratus Mann, 1925 (uncertain, unassessed)
  » Species Auliscus quadriceps ‘J.W. Bailey ms' Habirshaw, 1881 (uncertain, unassessed)
  » Species Auliscus racemosus Ralfs ex Greville, 1863 (uncertain, unassessed)
  » Species Auliscus radiatus J.W.Bailey, 1854 (uncertain, unassessed)
  » Species Auliscus radiatus 'Ehrenberg' Janisch, 1861 (uncertain, unassessed)
  » Species Auliscus raeanus Rattray, 1888 (uncertain, unassessed)
    » Variety Auliscus raeanus var. transpennatus Brun, 1891 (uncertain, unassessed)
  » Species Auliscus ralfsianus Greville, 1863 (uncertain, unassessed)
  » Species Auliscus rattrayi Cleve in litt. ex Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus reichelti Debes ex Hustedt in Schmidt et al., 1944 (uncertain, unassessed)
  » Species Auliscus rugosus Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus schmidtii Gründler in Schmidt et al., 1875 (uncertain, unassessed)
  » Species Auliscus scutulum Long, Fuge & Smith, 1946 (uncertain, unassessed)
  » Species Auliscus secalli Azpeitia Moros, 1911 (uncertain, unassessed)
  » Species Auliscus shulzei Boyer, 1922 (uncertain, unassessed)
  » Species Auliscus sigillum J.-J.Brun, 1892 (uncertain, unassessed)
  » Species Auliscus similis Hustedt in Schmidt et al., 1944 (uncertain, unassessed)
  » Species Auliscus smithii Janisch, 1861 (uncertain, unassessed)
  » Species Auliscus speciosus A. Schmidt in Schmidt et al., 1882 (uncertain, unassessed)
  » Species Auliscus spectabilis Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus spinosus Christian, 1887 (uncertain, unassessed)
  » Species Auliscus spissus Long, Fuge & Smith, 1946 (uncertain, unassessed)
  » Species Auliscus squamosus Brun, 1896 (uncertain, unassessed)
  » Species Auliscus stellatus H.L. Smith in Walker & Chase, 1886 (uncertain, unassessed)
  » Species Auliscus stelliger Petit, 1877 (uncertain, unassessed)
  » Species Auliscus stenops Schmidt in Schmidt et al., 1890 (uncertain, unassessed)
  » Species Auliscus sturtii Cleve ms, Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus subcaelatus Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus sublaevis Grunow ms. ex Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus subspeciosus Rattray, 1888 (uncertain, unassessed)
  » Species Auliscus superbus Leuduger-Fortmorel, 1879 (uncertain, unassessed)
  » Species Auliscus suppressus Hanna, 1932 (uncertain, unassessed)
  » Species Auliscus tenuistriatus Hustedt in Schmidt et al., 1944 (uncertain, unassessed)
  » Species Auliscus tenuistriatus Hustedt ex Simonsen, 1987 (uncertain, unassessed)
  » Species Auliscus textilis Schmidt in Schmidt et al., 1886 (uncertain, unassessed)
  » Species Auliscus translucidus Brun, 1895 (uncertain, unassessed)
  » Species Auliscus transpennatus Brun, 1891 (uncertain, unassessed)
  » Species Auliscus treubii Leuduger-Fortmorel, 1892 (uncertain, unassessed)
  » Species Auliscus tricorona J.-J.Brun, 1889 (uncertain, unassessed)
  » Species Auliscus trilumen Brun in Brun & Tempère, 1889 (uncertain, unassessed)
  » Species Auliscus trilunaris Brun in Brun & Tempère, 1889 (uncertain, unassessed)
  » Species Auliscus trioculatus Long, Fuge & Smith, 1946 (uncertain, unassessed)
  » Species Auliscus tripinnatus Bone & Gosden, 1968 (uncertain, unassessed)
  » Species Auliscus whartoni Long, Fuge & Smith, 1946 (uncertain, unassessed)
Genus Australodiscus V. Porguen & M.J. Sullivan, 1997 †
  » Species Australodiscus peruvianus Porguen & Sullivan, 1997 † (uncertain, unassessed)
Genus Cerataulus Ehrenberg, 1844
  » Species Cerataulus granulata (Roper) P.A. Sims & D.M. Williams, 2018 †
  » Species Cerataulus labuensis Cleve
    » Variety Cerataulus labuensis var. labuensis Cleve, 1883 (uncertain, unassessed)
    » Variety Cerataulus labuensis var. linearis Amossé, 1924 (uncertain, unassessed)
  » Species Cerataulus orbicularis Forti
    » Variety Cerataulus orbicularis var. lacustris (Holmboe) Forti (uncertain, unassessed)
    » Variety Cerataulus orbicularis var. orbicularis Forti, 1910 (uncertain, unassessed)
  » Species Cerataulus polymorphus (Montagne) Van Heurck
  » Species Cerataulus simsae Hernández-Becerril & Baron-Campis, 2012
  » Species Cerataulus smithii Ralfs ex Pritchard, 1861
  » Species Cerataulus strelnikovae P.A. Sims & D. M. Williams in Sims et al, 2018 †
  » Species Cerataulus thermalis (Meneghini) Ralfs
  » Species Cerataulus turgidus Ehrenberg
    » Forma Cerataulus turgidus f. turgidus (Ehrenberg) Ehrenberg, 1843 represented as Denticella turgida Ehrenberg, 1840
    » Variety Cerataulus turgidus var. linearis (Amossé) Mills, 1933 represented as Cerataulus labuensis var. linearis Amossé, 1924
    » Forma Cerataulus turgidus f. majorspinifera Peragallo & Peragallo, 1902 (uncertain, unassessed)
    » Forma Cerataulus turgidus f. minor Tempère & Peragallo, 1908 (uncertain, unassessed)
    » Variety Cerataulus turgidus var. hispidissima Pantocsek, 1889 (uncertain, unassessed)
    » Variety Cerataulus turgidus var. majorspinifera H. Peragallo in Tempère & Peragallo, 1908 (uncertain, unassessed)
    » Variety Cerataulus turgidus var. polyceros Castracane, 1886 (uncertain, unassessed)
    » Variety Cerataulus turgidus var. terryana Kain in Forti, 1910 (uncertain, unassessed)
  » Species Cerataulus galapagensis (Cleve) Schmidt in Schmidt et al., 1888 represented as Biddulphia gallapagensis Cleve, 1881
  » Species Cerataulus johnsonianus (Greville) Cleve, 1885 represented as Biddulphia johnsoniana Greville, 1866
  » Species Cerataulus labuani (Cleve) Cleve in Schmidt et al., 1888 represented as Cerataulus labuensis var. labuensis Cleve, 1883
  » Species Cerataulus pangeroni Thum represented as Cerataulus laevis var. pangeroni Leuduger-Fortmorel, 1892
  » Species Cerataulus laevis (Ehrenberg) Ralfs, 1861 accepted as Pleurosira laevis (Ehrenberg) Compère, 1982 (synonym)
    » Variety Cerataulus laevis var. chinensis Grunow, 1877 (uncertain, unassessed)
    » Variety Cerataulus laevis var. pangeroni Leuduger-Fortmorel, 1892 (uncertain, unassessed)
    » Variety Cerataulus laevis var. thermalis Grunow in Schmidt et al., 1888 (uncertain, unassessed)
    » Variety Cerataulus laevis var. thomei Leuduger-Fortmorel, 1898 (uncertain, unassessed)
  » Species Cerataulus turgidus (Ehrenberg) Ehrenberg, 1844 accepted as Odontella turgida (Ehrenberg) Kützing, 1844 (synonym)
  » Species Cerataulus antediluvianus M. Peragallo in Tempère & Peragallo, 1913 (uncertain, unassessed)
  » Species Cerataulus azoricus Pavillard, 1930 (uncertain, unassessed)
  » Species Cerataulus bergonii H.Peragallo, 1892 (uncertain, unassessed)
  » Species Cerataulus boryanus Pantocsek, 1889 (uncertain, unassessed)
  » Species Cerataulus californicus Schmidt in Schmidt et al., 1888 (uncertain, unassessed)
  » Species Cerataulus chinensis Grunow, 1877 (uncertain, unassessed)
  » Species Cerataulus deflandrei Cheneviere, 1934 (uncertain, unassessed)
  » Species Cerataulus ellipticus Vekschina, 1961 (uncertain, unassessed)
  » Species Cerataulus hungaricus Pantocsek, 1889 (uncertain, unassessed)
  » Species Cerataulus hustedtii Amossé, 1969 (uncertain, unassessed)
  » Species Cerataulus imperator Hanna & Grant, 1926 (uncertain, unassessed)
  » Species Cerataulus japonicus Pantocsek, 1892 (uncertain, unassessed)
  » Species Cerataulus kinkeri Schmidt in Schmidt et al., 1888 (uncertain, unassessed)
  » Species Cerataulus laevis [sensu] Rabenhorst, 1864 (uncertain, unassessed)
  » Species Cerataulus marginatus Grove & Sturt, 1887 (uncertain, unassessed)
  » Species Cerataulus ovalis Schmidt in Schmidt et al., 1888 (uncertain, unassessed)
  » Species Cerataulus pacificus Hajós, 1976 (uncertain, unassessed)
  » Species Cerataulus pacificus Grunow in Schmidt et al., 1888 (uncertain, unassessed)
  » Species Cerataulus peragalloi Pantocsek (uncertain, unassessed)
  » Species Cerataulus petitii Leuduger-Fortmorel, 1892 (uncertain, unassessed)
  » Species Cerataulus radiatus R.Ross, 1986 (uncertain, unassessed)
  » Species Cerataulus reichardtii Grunow, 1863 (uncertain, unassessed)
  » Species Cerataulus rotundatus Schibkova in Krotov & Schibkova, 1959 (uncertain, unassessed)
  » Species Cerataulus rotundus Tempère & Brun, 1890 (uncertain, unassessed)
  » Species Cerataulus scaber (uncertain, unassessed)
  » Species Cerataulus socotrensis Kitton, 1884 (uncertain, unassessed)
  » Species Cerataulus subangulatus Grove & Sturt, 1886 † (uncertain, unassessed)
  » Species Cerataulus thermalis Grunow, 1863 (uncertain, unassessed)
  » Species Cerataulus thomei 'Leuduger-Fortmorel' according to Mills, 1933 (uncertain, unassessed)
  » Species Cerataulus thumii Schmidt in Schmidt et al., 1888 (uncertain, unassessed)
  » Species Cerataulus titianus Grunow, 1863 (uncertain, unassessed)
  » Species Cerataulus weissflogii Pantocsek (uncertain, unassessed)
Genus Eupodiscus J.W. Bailey, 1851
  » Species Eupodiscus gregorianus Brébisson, 1870
  » Species Eupodiscus radiatus Bailey, 1851
    » Variety Eupodiscus radiatus var. antiqua Cox in Kain & Schultze, 1889 (uncertain, unassessed)
    » Variety Eupodiscus radiatus var. humilis Rattray, 1888 (uncertain, unassessed)
    » Variety Eupodiscus radiatus var. minor Grunow, 1867 (uncertain, unassessed)
    » Variety Eupodiscus radiatus var. radiatus J.W. Bailey, 1851 (uncertain, unassessed)
  » Species Eupodiscus antiquus (Cox) Hanna, 1932 represented as Eupodiscus radiatus var. antiqua Cox in Kain & Schultze, 1889
  » Species Eupodiscus argus (Ehrenberg) W.Smith, 1853 represented as Tripodiscus argus Ehrenberg, 1839
  » Species Eupodiscus coronalis (Brun) VanLandingham, 1971 represented as Isodiscus coronalis Brun, 1895 †
  » Species Eupodiscus debyi (Grove & Sturt) Grove & Sturt in lit. Botan. Central represented as Lampriscus debii Grove & Sturt, 1887
  » Species Eupodiscus interpunctatus (Brightwell) Grunow, 1868 represented as Actinoptychus interpunctatus Brightwell, 1860
  » Species Eupodiscus mirificus (Rattray) Schütt, 1896 represented as Isodiscus mirificus Rattray, 1888 †
  » Species Eupodiscus nebulosus (Leuduger-Fortmorel) Rattray, 1888 represented as Pseudauliscus nebulosus (Greville) Rattray, 1888
  » Species Eupodiscus weissflogii (Grunow) De Toni, 1894 represented as Micropodiscus weissflogii Grunow, 1885
  » Species Eupodiscus lineatus J.W.Barker & S.H.Meakin, 1947 † accepted as Praetriceratium lineatum (Barker & Meakin) P.A.Sims, 2001 †
  » Species Eupodiscus ralfsii W.Smith, 1856 accepted as Actinocyclus octonarius var. ralfsii (W.Smith) Hendey, 1954 (synonym)
    » Variety Eupodiscus ralfsii var. beta Gregory, 1855 (uncertain, unassessed)
    » Variety Eupodiscus ralfsii var. ralfsii W. Smith, 1856 (uncertain, unassessed)
  » Species Eupodiscus americanus Ehrenberg, 1844 (uncertain, unassessed)
  » Species Eupodiscus baileyi Ehrenberg, 1844 (uncertain, unassessed)
  » Species Eupodiscus barbadensis Meakin & Brigger, 1949 (uncertain, unassessed)
  » Species Eupodiscus barbadensis Greville, 1864 (uncertain, unassessed)
  » Species Eupodiscus churchii (Hanna) P.A. Sims, 2001 (uncertain, unassessed)
  » Species Eupodiscus commutatus Grunow, 1884 (uncertain, unassessed)
  » Species Eupodiscus commutatus Grunow, 1884 (uncertain, unassessed)
  » Species Eupodiscus concinnus (uncertain, unassessed)
  » Species Eupodiscus coronatus (Brun) VanLandingham, 1969 (uncertain, unassessed)
  » Species Eupodiscus crassus W.Smith, 1853 (uncertain, unassessed)
  » Species Eupodiscus crucifer Shadbolt, 1854 (uncertain, unassessed)
  » Species Eupodiscus crux (Ehrenberg) Kützing, 1849 (uncertain, unassessed)
  » Species Eupodiscus decrescens Rattray, 1888 (uncertain, unassessed)
  » Species Eupodiscus deformis Habirshaw et al., 1877-1894 (uncertain, unassessed)
  » Species Eupodiscus excentricus O'Meara, 1867 (uncertain, unassessed)
  » Species Eupodiscus formosus Walker-Arnott, 1858 (uncertain, unassessed)
  » Species Eupodiscus fulvus W. Smith, 1853 (uncertain, unassessed)
  » Species Eupodiscus germanicus Ehrenberg, 1844 (uncertain, unassessed)
  » Species Eupodiscus gregoryanus de Brébisson, 1870 (uncertain, unassessed)
  » Species Eupodiscus grevillii Ralfs in Pritchard, 1861 (uncertain, unassessed)
  » Species Eupodiscus hardmanianus Greville, 1866 (uncertain, unassessed)
  » Species Eupodiscus inconspicuus Rattray, 1888 (uncertain, unassessed)
  » Species Eupodiscus insutus Castracane, 1886 (uncertain, unassessed)
  » Species Eupodiscus jonesianus Greville, 1862 (uncertain, unassessed)
  » Species Eupodiscus kamischevensis Jousé in Proschkina-Lavrenko, 1949 (uncertain, unassessed)
  » Species Eupodiscus lacustris Holmboe in Wille, 1903 (uncertain, unassessed)
  » Species Eupodiscus laevis (uncertain, unassessed)
  » Species Eupodiscus marginatus Collections of Greville & Hardman (uncertain, unassessed)
  » Species Eupodiscus mendosus VanLandingham, 1969 (uncertain, unassessed)
  » Species Eupodiscus minutus Greville, 1866 (uncertain, unassessed)
  » Species Eupodiscus minutus Hantzsch in Rabenhorst, 1863 (uncertain, unassessed)
  » Species Eupodiscus monstruosus Ehrenberg, 1844 (uncertain, unassessed)
  » Species Eupodiscus oamaruensis Grunow, 1887 † (uncertain, unassessed)
  » Species Eupodiscus obscurus Greville, 1862 (uncertain, unassessed)
  » Species Eupodiscus oculatus Greville, 1862 (uncertain, unassessed)
  » Species Eupodiscus ovalis G.Norman, 1861 (uncertain, unassessed)
  » Species Eupodiscus paracaënsis M.J.Sullivan & V.Porguen, 1990 † (uncertain, unassessed)
  » Species Eupodiscus parvulus Amossé, 1924 (uncertain, unassessed)
    » Variety Eupodiscus parvulus var. concentrica Rattray, 1888 (uncertain, unassessed)
    » Variety Eupodiscus parvulus var. parvulus Greville in Rattray, 1888 (uncertain, unassessed)
  » Species Eupodiscus peruvianus Kitton ex Ralfs in Pritchard, 1861 (uncertain, unassessed)
  » Species Eupodiscus petersii (Ehrenberg) Kützing, 1849 (uncertain, unassessed)
  » Species Eupodiscus punctatulus Greville specimens (slides) (uncertain, unassessed)
  » Species Eupodiscus punctatus Bailey manuscript in Habirshaw et al., 1877-1894 (uncertain, unassessed)
  » Species Eupodiscus punctulatus Greville, 1863 (uncertain, unassessed)
  » Species Eupodiscus quaternarius Ehrenberg, 1844 (uncertain, unassessed)
  » Species Eupodiscus quinarius Ehrenberg, 1844 (uncertain, unassessed)
  » Species Eupodiscus radiatus W. Smith, 1853 (uncertain, unassessed)
  » Species Eupodiscus rogersii Ehrenberg, 1844 (uncertain, unassessed)
  » Species Eupodiscus roperi Brébisson, 1870 (uncertain, unassessed)
  » Species Eupodiscus scaber (uncertain, unassessed)
  » Species Eupodiscus sculptus W.Smith, 1853 (uncertain, unassessed)
  » Species Eupodiscus septenarius Ehrenberg, 1856 (uncertain, unassessed)
  » Species Eupodiscus simbirskianus Grunow, 1887 † (uncertain, unassessed)
  » Species Eupodiscus simplex Greville, 1863 (uncertain, unassessed)
  » Species Eupodiscus sparsus Gregory, 1857 (uncertain, unassessed)
  » Species Eupodiscus subtilis Gregory, 1857 (uncertain, unassessed)
  » Species Eupodiscus subtilis Ehrenberg, 1855 (uncertain, unassessed)
  » Species Eupodiscus tenellus Brébisson, 1854 (uncertain, unassessed)
  » Species Eupodiscus tesselatus Roper, 1858 (uncertain, unassessed)
  » Species Eupodiscus trioculatus (uncertain, unassessed)
    » Variety Eupodiscus trioculatus var. californicus Grunow in Van Heurck, 1883 (uncertain, unassessed)
    » Variety Eupodiscus trioculatus var. trioculatus Greville, 1864 (uncertain, unassessed)
  » Species Eupodiscus tripes Johnson, 1852 (uncertain, unassessed)
  » Species Eupodiscus umbonatus Barker & Meakin, 1945 (uncertain, unassessed)
  » Species Eupodiscus vallatus Barker & Meakin, 1946 (uncertain, unassessed)
  » Species Eupodiscus velatus Greville ex Moller, 1868, 1881 (uncertain, unassessed)
Genus Hobaniella P.A. Sims & D. M. Williams in Sims et al, 2018
Genus Jouserella T.F.Kozyrenko in T.F.Kozyrenko & N.I.Strelnikova, 2012 †
Genus Lampriscus A. Schmidt in A. Schmidt et al., 1882
  » Species Lampriscus orbiculatum (Shadbolt) Peragallo & Peragallo, 1902
  » Species Lampriscus shadboldtianum (Greville) H.Peragallo & M.Peragallo, 1902
  » Species Lampriscus circularis (Grunow) De Toni, 1894 represented as Triceratium circulare f. circulare Grunow in Van Heurck, 1883
  » Species Lampriscus gibbosus (Harvey & J.W. Bailey) De Toni, 1894 represented as Triceratium gibbosum f. gibbosum Harvey & J.W. Bailey, 1853 (1854)
  » Species Lampriscus orbiculatus (Shadbolt) Cleve, 1901 represented as Triceratium orbiculatum var. orbiculatum Shadbolt, 1854
  » Species Lampriscus circulare Van Heurck, 1883 (uncertain, unassessed)
    » Variety Lampriscus circulare var. circulare Van Heurck, 1883 (uncertain, unassessed)
  » Species Lampriscus debii Grove & Sturt, 1887 (uncertain, unassessed)
  » Species Lampriscus fasciculatus De Toni, 1894 (uncertain, unassessed)
  » Species Lampriscus kittonii Schmidt in Schmidt et al., 1882 (uncertain, unassessed)
  » Species Lampriscus leudugeri (uncertain, unassessed)
  » Species Lampriscus leudugerii (uncertain, unassessed)
  » Species Lampriscus orbiculatus (sensu Brightwell) (uncertain, unassessed)
  » Species Lampriscus shadboltianus (uncertain, unassessed)
Genus Odontella C.A. Agardh, 1832
  » Species Odontella aurita (Lyngbye) C.Agardh, 1832
  » Species Odontella acutum (Ehrenberg) M. Peragallo, 1903 represented as Triceratium acutum Ehrenberg, 1844 (1845)
  » Species Odontella affine (Grunow in Van Heurck) M. Peragallo, 1903 represented as Triceratium affine Grunow in Van Heurck, 1883
  » Species Odontella affinis (Grunow) Cleve, 1901 represented as Triceratium affine Grunow in Van Heurck, 1883
  » Species Odontella angulata (Schmidt in Schmidt et al.) De Toni, 1894 represented as Biddulphia angulata Schmidt in Schmidt et al., 1888
  » Species Odontella antediluviana (Ehrenberg) M. Peragallo, 1903 represented as Amphitetras antediluviana var. antediluviana Ehrenberg, 1840
  » Species Odontella atlantica (Frenguelli) E.A.Sar, 2007 represented as Biddulphia rhombus var. atlantica J.Frenguelli, 1930
  » Species Odontella barbadensis (Greville) De Toni, 1894 represented as Biddulphia barbadensis Greville, 1866
  » Species Odontella birostrum (Brun) De Toni, 1894 represented as Biddulphia birostrum Brun, 1891
  » Species Odontella blanda (Schmidt in Schmidt et al.) F.W. Mills, 1933 represented as Biddulphia blanda Schmidt in Schmidt et al., 1888
  » Species Odontella brittoniana (Kain & E.A. Schultze) De Toni, 1894 represented as Biddulphia brittoniana C.H.Kain & E.A.Schultze, 1889 †
  » Species Odontella calamus (Brun & Tempère) Schrader in Schrader & Fenner, 1976 represented as Biddulphia calamus Tempère & Brun, 1889 †
  » Species Odontella californica (Grunow in Van Heurck) M. Peragallo, 1903 represented as Triceratium californicum Grunow in Van Heurck, 1883
  » Species Odontella chinensis (Greville) Grunow, 1884 represented as Biddulphia sinensis Greville, 1866
  » Species Odontella consimilis (Grunow in Van Heurck) M. Peragallo, 1903 represented as Triceratium consimile Grunow in Van Heurck, 1883
  » Species Odontella cookiana (Kain & E.A. Schultze) De Toni, 1894 represented as Biddulphia cookiana Kain & Schultze, 1889
  » Species Odontella cornuta (J. Brun) Schrader in Schrader & Fenner, 1976 represented as Biddulphia cornuta Brun, 1894
  » Species Odontella cornuta (Greville) M. Peragallo, 1903 represented as Triceratium cornutum R.K.Greville †
  » Species Odontella decorata (Greville) De Toni, 1894 represented as Biddulphia decorata Greville, 1865
  » Species Odontella dissipata (Grove & Sturt) De Toni, 1894 represented as Biddulphia dissipata Grove & Sturt, 1887
  » Species Odontella dubia (Brightwell) Cleve, 1901 represented as Pseudictyota dubium (Brightwell) P.A. Sims & D. M. Williams in Sims et al., 2018
  » Species Odontella edwardsii (Febiger ex H.L. Smith) Grunow, 1884 represented as Biddulphia edwardsii Febiger ex Grunow, 1882
  » Species Odontella elegans (Greville) M. Peragallo, 1903 represented as Amphitetras elegans Greville, 1866
  » Species Odontella elegans (Van Heurck) De Toni, 1894 represented as Amphitetras elegans Greville, 1866
    » Variety Odontella elegans var. elegans Van Heurck, 1883 (uncertain, unassessed)
  » Species Odontella expedita (Janisch in Schmidt et al.) De Toni, 1894 represented as Biddulphia expedita Janisch in Schmidt et al., 1888
  » Species Odontella favus (Ehrenberg) Cleve, 1901 represented as Triceratium favus f. favus Ehrenberg, 1840
  » Species Odontella favus (Ehrenberg) M. Peragallo, 1903 represented as Triceratium favus f. favus Ehrenberg, 1840
  » Species Odontella fenestrata (Grunow in Schmidt et al.) De Toni, 1894 represented as Biddulphia fenestrata (Grove & Sturt) Grunow in Schmidt et al., 1888
  » Species Odontella fimbriata (Greville) Grunow, 1884 † represented as Parodontella fimbriata (Greville) D. M. Williams & P.A. Sims in Sims et al., 2018 †
  » Species Odontella gallapagensis (Cleve) De Toni, 1894 represented as Biddulphia gallapagensis Cleve, 1881
  » Species Odontella hastata (Greville) J. Fenner ex Williams, 1988 represented as Hemiaulus hastatus Greville, 1865
  » Species Odontella laevis (Ehrenberg) Kützing, 1849 represented as Denticella levis Ehrenberg, 1844
  » Species Odontella litigiosa (Van Heurck) Hoban, 1980 represented as Biddulphia litigiosa Van Heurck, 1909
  » Species Odontella longicruris (Greville) M.A.Hoban, 1983 represented as Hobaniella longicruris (Greville) P.A. Sims & D.M. Williams in Sims et al., 2018
  » Species Odontella longispina (Grunow in Van Heurck) Grunow, 1884 represented as Biddulphia longispina Grunow in Van Heurck, 1882
  » Species Odontella macdonaldii (Norman in Pritchard) Grunow, 1884 represented as Biddulphia macdonaldii Norman in Pritchard, 1861
  » Species Odontella madagascarensis (Grunow in Van Heurck) M. Peragallo, 1903 represented as Triceratium madagascarense Grunow in Van Heurck, 1883
  » Species Odontella mammifera (Grunow in Van Heurck) M. Peragallo, 1903 represented as Triceratium mammiferum f. mammiferum Grunow in Van Heurck, 1883
  » Species Odontella mammosa (Greville) De Toni, 1894 represented as Biddulphia mammosa Greville, 1866
  » Species Odontella manca (Janisch in Schmidt et al.) De Toni, 1894 represented as Biddulphia manca Janisch in Schmidt et al., 1888
  » Species Odontella minutissima (Greville) De Toni, 1894 represented as Biddulphia minutissima Greville, 1886
  » Species Odontella oamaruensis (Grove & Sturt) De Toni, 1894 represented as Biddulphia oamaruensis Grove & Sturt, 1886
  » Species Odontella pedalis (Grunow & Sturt) Grunow, 1888 represented as Biddulphia pedalis Grove & Sturt, 1887
  » Species Odontella plana (Schmidt in Schmidt et al.) De Toni, 1894 represented as Pseudictyota plana (A. Schmidt) P.A. Sims & D. M. Williams in Sims et al., 2018
  » Species Odontella polymera (Ehrenberg) Kützing, 1849 represented as Denticella polymera Ehrenberg, 1844 (1845)
  » Species Odontella polymorpha Kützing represented as Isthmia polymorpha Montagne, 1840
  » Species Odontella primordialis (Brun) De Toni, 1894 represented as Biddulphia primordialis var. primordialis Brun, 1891
  » Species Odontella reticulata (Roper) De Toni, 1894 represented as Biddulphia reticulata f. reticulata Roper, 1859
  » Species Odontella retiformis (A. Mann) von Stosch, 1985 represented as Biddulphia retiformis Mann, 1925
    » Variety Odontella retiformis var. trigona von Stosch, 1985 (uncertain, unassessed)
  » Species Odontella rhombus (Ehrenberg) Kützing, 1849 represented as Zygoceros rhombus Ehrenberg, 1839
  » Species Odontella roperiana (Greville) De Toni, 1894 represented as Biddulphia roperiana f. roperiana Greville, 1859
  » Species Odontella rostrata (Hustedt) Simonsen, 1987 represented as Biddulphia rostrata var. rostrata Hustedt, 1939
  » Species Odontella separanda (Janisch in Schmidt et al.) De Toni, 1894 represented as Biddulphia separanda Janisch in Schmidt et al., 1888
  » Species Odontella sinensis (Greville) Grunow, 1884 represented as Biddulphia sinensis Greville, 1866
  » Species Odontella smithii (Ralfs in Pritchard) M. Peragallo, 1903 represented as Cerataulus smithii var. smithii Ralfs in Pritchard, 1861
  » Species Odontella spinosa (Greville) Grunow, 1884 represented as Biddulphia spinosa var. spinosa Greville, 1865
  » Species Odontella spinulosa (Grunow) Cleve, 1901 represented as Triceratium spinulosum Grunow in Schmidt et al., 1885
  » Species Odontella tentaculifera (Cleve) De Toni, 1894 represented as Biddulphia tentaculifera Cleve, 1881
  » Species Odontella tridentata (Ehrenberg) M. Peragallo, 1903 represented as Denticella tridentata Ehrenberg, 1844
  » Species Odontella tubulosa (Brun) De Toni, 1894 represented as Biddulphia tubulosa Brun, 1891
  » Species Odontella tumida (Ehrenberg) Kützing, 1849 represented as Denticella tumida Ehrenberg, 1844 (1845)
  » Species Odontella turgida (Ehrenberg) Kützing, 1844 represented as Denticella turgida Ehrenberg, 1840
  » Species Odontella weissflogii (Grunow) Grunow, 1884 represented as Biddulphia weissflogii Grunow, 1882
  » Species Odontella granulata (Roper) R.Ross in Hartley, 1986 † accepted as Cerataulus granulata (Roper) P.A. Sims & D.M. Williams, 2018 † (Invalid)
  » Species Odontella subaequa Kützing, 1844 accepted as Biddulphia subaequa (Kützing) J.Ralfs, 1861 (basionym)
  » Species Odontella amphicephala Ehrenberg, 1845 (uncertain, unassessed)
  » Species Odontella biddulphioides Wigand, 1860 (uncertain, unassessed)
  » Species Odontella boryana Pantocsek, 1889 (uncertain, unassessed)
  » Species Odontella cornutum (uncertain, unassessed)
    » Variety Odontella cornutum var. pulchella Van Heurck, 1883 (uncertain, unassessed)
  » Species Odontella cristata Fide Grunow, 1884 (uncertain, unassessed)
  » Species Odontella desmidium Ehrenberg, 1838 (uncertain, unassessed)
  » Species Odontella discigera (Grunow) De Toni (uncertain, unassessed)
  » Species Odontella etolona Dolmatova in Dolmatova, Kuklina & Oreshkina, 1984 (uncertain, unassessed)
  » Species Odontella febigeri Grunow, 1884 (uncertain, unassessed)
  » Species Odontella filiformis Ehrenberg, 1838 (uncertain, unassessed)
  » Species Odontella heibergii Grunow, 1884 (uncertain, unassessed)
  » Species Odontella laeve (uncertain, unassessed)
  » Species Odontella mammiferum (uncertain, unassessed)
    » Variety Odontella mammiferum var. minor Van Heurck, 1883 (uncertain, unassessed)
  » Species Odontella minuta (Greville) Andrews in Wetmore & Andrews, 1990 (uncertain, unassessed)
  » Species Odontella mobilensis (J. W. Bailey) Grunow, 1884 (uncertain, unassessed)
  » Species Odontella mobiliensis (J.W.Bailey) Grunow, 1884 (uncertain, unassessed)
  » Species Odontella neogradensis Pantocsek, 1886 (uncertain, unassessed)
  » Species Odontella obtusa Kützing, 1844 (uncertain, unassessed)
  » Species Odontella obtusa Grunow in Schmidt et al., 1888 (uncertain, unassessed)
    » Variety Odontella obtusa var. obtusa Reinsch, 1890 (uncertain, unassessed)
  » Species Odontella polycanthos (Brun) De Toni, 1894 (uncertain, unassessed)
  » Species Odontella polymorphus (uncertain, unassessed)
    » Variety Odontella polymorphus var. polymorphus Van Heurck, 1883 (uncertain, unassessed)
  » Species Odontella pulverea Olshtynskaja, 1978 (uncertain, unassessed)
  » Species Odontella pygmea Pantocsek, 1892 (uncertain, unassessed)
  » Species Odontella regia (Schultze) Simonsen, 1974 (uncertain, unassessed)
  » Species Odontella rhomboides R.Jahn & W.-H.Kusber, 2004 (uncertain, unassessed)
  » Species Odontella sawamurae Akiba in Morita, Titova & Akiba, 1996 (uncertain, unassessed)
  » Species Odontella septentrionala Schrader in Schrader & Fenner, 1976 (uncertain, unassessed)
  » Species Odontella striata Reinsch, 1890 (uncertain, unassessed)
  » Species Odontella sublevis (Grunow in Van Heurck) De Toni, 1894 (uncertain, unassessed)
  » Species Odontella tetraodon Ehrenberg, 1840 (uncertain, unassessed)
  » Species Odontella unidentata Ehrenberg, 1838 (uncertain, unassessed)
Genus Petrochiscus N.I. Hendey & P.A. Sims, 2002 †
Genus Pleurosira (G. Meneghini) V.B.A. Trevisan di San Leon, 1848
  » Species Pleurosira indica B.Karthick & J.P.Kociolek, 2011
  » Species Pleurosira inusitata (Hohn & Hellerman) Desianti & Potapova, 2015
  » Species Pleurosira laevis (Ehrenberg) Compère, 1982
    » Forma Pleurosira laevis f. polymorpha Compère, 1982 (uncertain, unassessed)
    » Variety Pleurosira laevis var. paludosa (Tempère & Peragallo ex Forti) Compere, 1982 (uncertain, unassessed)
  » Species Pleurosira nanjiensis Yuhang Li, Nagumo & Kuidong Xu, 2018
  » Species Pleurosira baileyi Meneghini (uncertain, unassessed)
  » Species Pleurosira baileyi (Meneghini) Meneghini, 1846 (uncertain, unassessed)
  » Species Pleurosira minor D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez, 2005 (uncertain, unassessed)
  » Species Pleurosira socotrensis (Kitton) Compère, 1982 (uncertain, unassessed)
  » Species Pleurosira thermalis (Meneghini) San Léon, 1848 (uncertain, unassessed)
Genus Porguenia M.J. Sullivan, 1997 †
  » Species Porguenia peruviana M.J.Sullivan, 1997 † (uncertain, unassessed)
Genus Praetriceratium P.A. Sims, 2001 †
Genus Proteucylindrus C.-W. Li & Y.-M. Chiang, 1979
  » Species Proteucylindrus taiwanensis C.-W.Li & Y.-M.Chiang, 1979 (uncertain, unassessed)
Genus Pseudauliscus A. Schmidt in A. Schmidt et al., 1875
  » Species Pseudauliscus peruvianus (Kitton ex Ralfs) A.Schmidt, 1875
  » Species Pseudauliscus leudugerii (H. Peragallo) De Toni, 1894 represented as Auliscus leudugeri H. Peragallo, 1888
  » Species Pseudauliscus luminosus (Brun) De Toni, 1894 represented as Auliscus luminosus Brun, 1891
  » Species Pseudauliscus nebulosus (Greville) Rattray, 1888 represented as Auliscus nebulosus Greville, 1863
  » Species Pseudauliscus notatus (Greville) Rattray, 1888 represented as Auliscus notatus Greville, 1865
  » Species Pseudauliscus ornatus (Greville) Rattray, 1888 represented as Auliscus ornatus Greville, 1864
  » Species Pseudauliscus pulvinatus (Cleve) Rattray, 1888 represented as Auliscus pulvinatus f. pulvinatus Cleve, 1885
  » Species Pseudauliscus radiatus (Bailey) Rattray, 1888 represented as Auliscus radiatus J.W.Bailey, 1854
  » Species Pseudauliscus ralfsianus (Greville) Rattray, 1888 represented as Auliscus ralfsianus Greville, 1863
  » Species Pseudauliscus spinosus (Christian in Schmidt et al.) Rattray, 1888 represented as Auliscus spinosus Christian, 1887
  » Species Pseudauliscus trilunaris (Brun in Brun & Tempère) De Toni, 1894 represented as Auliscus trilunaris Brun in Brun & Tempère, 1889
  » Species Pseudauliscus ambiguus (uncertain, unassessed)
  » Species Pseudauliscus anceps Rattray, 1888 (uncertain, unassessed)
  » Species Pseudauliscus brunii Pantocsek, 1889 (uncertain, unassessed)
  » Species Pseudauliscus debyi Leuduger-Fortmorel, 1879 (uncertain, unassessed)
  » Species Pseudauliscus diffusus Rattray, 1888 (uncertain, unassessed)
  » Species Pseudauliscus elaboratus (uncertain, unassessed)
  » Species Pseudauliscus granulatus Pantocsek, 1892 (uncertain, unassessed)
  » Species Pseudauliscus grevillei R. Ross in Williams, 1988 (uncertain, unassessed)
  » Species Pseudauliscus hirsutus Rattray, 1888 (uncertain, unassessed)
  » Species Pseudauliscus johnsonianus (uncertain, unassessed)
  » Species Pseudauliscus kamichevensis Hendey, 1939 (uncertain, unassessed)
  » Species Pseudauliscus letoniensis Janisch in Schmidt et al., 1881 (uncertain, unassessed)
  » Species Pseudauliscus letournerii (Brun) De Toni, 1894 (uncertain, unassessed)
  » Species Pseudauliscus nebulosus Leuduger-Fortmorel, 1879 (uncertain, unassessed)
  » Species Pseudauliscus oculatus (Greville) P.A. Sims, 2001 (uncertain, unassessed)
  » Species Pseudauliscus oculatus Grove Collection (uncertain, unassessed)
  » Species Pseudauliscus petitii Leuduger-Fortmorel, 1879 (uncertain, unassessed)
  » Species Pseudauliscus radiatus (J.W.Bailey) A.Schmidt, 1875 (uncertain, unassessed)
  » Species Pseudauliscus ralfsianus (Greville) Hanna & Brigger, 1964 (uncertain, unassessed)
  » Species Pseudauliscus ralfsianus (Greville) Rattray, 1888 (uncertain, unassessed)
  » Species Pseudauliscus rattrayi Pantocsek, 1889 (uncertain, unassessed)
  » Species Pseudauliscus rotatus Rattray, 1888 (uncertain, unassessed)
  » Species Pseudauliscus schmidtii (uncertain, unassessed)
  » Species Pseudauliscus schmidtii (uncertain, unassessed)
    » Variety Pseudauliscus schmidtii var. schmidtii Pantocsek, 1889 (uncertain, unassessed)
    » Variety Pseudauliscus schmidtii var. tetrameri Forti in Tempére & Peragallo, 1914 (uncertain, unassessed)
    » Variety Pseudauliscus schmidtii var. tetrameri Forti ex Laporte & Lefébure, 1930 (uncertain, unassessed)
  » Species Pseudauliscus tetraophthalmus Cleve ex Rattray, 1888 (uncertain, unassessed)
  » Species Pseudauliscus trigemmis (uncertain, unassessed)
  » Species Pseudauliscus triloculatus (Greville) F.W. Mills, 1934 (uncertain, unassessed)
  » Species Pseudauliscus udiensis Debes ex Hustedt in Schmidt et al., 1940 (uncertain, unassessed)
  » Species Pseudauliscus umbilicatus Barker & Meakin, 1943 (uncertain, unassessed)
Genus Pseudictyota P.A.Sims & D.M.Williams in Sims et al., 2018
Genus Ralfsiella P.A. Sims, D. M. Williams & Ashworth, 2018
Genus Sheshukovia Z.I.Glezer, 1975 †
  » Species Sheshukovia atemariensis Nikitina & Strelnikova in Strelnikova & Nikitina, 2018 †
  » Species Sheshukovia cellulosa
  » Species Sheshukovia subundosa (Hustedt) Z.I.Gleser, 1984 †
  » Species Sheshukovia abyssora (Grunow) Gleser, 1984 represented as Triceratium abyssorum var. abyssorum Grunow in Van Heurck, 1883
  » Species Sheshukovia abyssorum (Grunow) Z.I.Glezer † represented as Triceratium abyssorum var. abyssorum Grunow in Van Heurck, 1883
  » Species Sheshukovia admirabilis (Debes) Gleser, 1984 represented as Triceratium admirabile Debes ex Hustedt in Schmidt et al., 1930
  » Species Sheshukovia archangelskiana (Witt) Gleser, 1984 represented as Triceratium archangelskianum var. archangelskianum Witt, 1885
  » Species Sheshukovia areolata (Greville) Gleser, 1984 represented as Triceratium areolatum f. areolatum Greville, 1861
  » Species Sheshukovia castellata (West) Gleser, 1984 represented as Triceratium castellatum var. castellatum West, 1860
  » Species Sheshukovia crenulata (Grove & Sturt) Gleser, 1984 represented as Triceratium crenulatum f. crenulatum Grove & Sturt, 1887
  » Species Sheshukovia duplicata (A. Schmidt) Gleser, 1984 † represented as Triceratium duplicatum Schmidt in Schmidt et al., 1882
  » Species Sheshukovia excavata (Heiberg) V.A. Nikolaev & D.M. Harwood in Nikolaev, V.A., Kociolek, J.P., Fourtanier, E., Barron, J.A. & Harwood, D.M., 2001 represented as Trinacria excavata f. excavata Heiberg, 1863
  » Species Sheshukovia exornata (Greville) Gleser, 1984 represented as Triceratium exornatum var. exornatum Greville, 1856
  » Species Sheshukovia fenestrata (Witt) Gleser, 1984 † represented as Triceratium fenestratum Witt, 1885
  » Species Sheshukovia flos (Ehrenberg) Gleser, 1984 represented as Triceratium flos var. flos Ehrenberg, 1855
  » Species Sheshukovia flos (Ehrenberg) Fenner, 1994 represented as Triceratium flos var. flos Ehrenberg, 1855
  » Species Sheshukovia kolbei (Hustedt) Gleser, 1984 represented as Triceratium kolbei var. kolbei Hustedt in Schmidt et al., 1930
    » Variety Sheshukovia kolbei var. uralense (Jouse) Gleser, 1975 (uncertain, unassessed)
  » Species Sheshukovia mereskovskii (Pantocsek) Gleser, 1984 represented as Triceratium mereskovskii Pantocsek, 1889
  » Species Sheshukovia mirabilis (Jouse) Gleser, 1984 represented as Triceratium mirabile Jouse in Proschkina-Lavrenko, 1949
  » Species Sheshukovia morlandii (Grove & Sturt) Gleser, 1984 represented as Triceratium morlandii var. morlandii Grove & Sturt, 1887
  » Species Sheshukovia officiosa (Hustedt) Gleser, 1984 represented as Triceratium officiosum Hustedt in Schmidt et al., 1959
  » Species Sheshukovia orbiculata (Shibkova) Gleser, 1984 represented as Triceratium orbiculatum Schibkova in Krotov & Schibkova, 1959
  » Species Sheshukovia plana (Strelnikova) Gleser, 1984 represented as Triceratium planum Strelnikova, 1974
  » Species Sheshukovia praetenue (Greville) Gleser, 1984 represented as Triceratium praetenue R.K.Greville, 1864 †
  » Species Sheshukovia pulchra (Hustedt) Gleser, 1984 represented as Triceratium pulchrum Hustedt in Schmidt et al., 1959
  » Species Sheshukovia sparsipunctata (Hustedt) Gleser, 1984 represented as Triceratium sparsipunctatum Hustedt in Schmidt et al., 1959
  » Species Sheshukovia sundbyense (Hustedt) Fenner, 1994 represented as Triceratium sundbyense Hustedt ex R.Simonsen, 1987 †
  » Species Sheshukovia sundbyensis (Hustedt ex R.Simonsen) J.Fenner, 1994 † represented as Triceratium sundbyense Hustedt ex R.Simonsen, 1987 †
  » Species Sheshukovia synica (Strelnikova) Gleser, 1984 † represented as Triceratium synicum N.I.Strelnikova, 1965 †
  » Species Sheshukovia triorbica (A. Schmidt) Gleser, 1984 represented as Triceratium triorbicum Schmidt in Schmidt et al., 1888
  » Species Sheshukovia udiensis (Hustedt) Gleser, 1984 represented as Triceratium udiensis Hustedt in Schmidt et al., 1959
  » Species Sheshukovia uralensis (Strelnikova) Gleser, 1984 † represented as Triceratium uralense N.I.Strelnikova, 1965 †
  » Species Sheshukovia weissii (Grunow) Gleser, 1984 represented as Triceratium weissii Grunow in A.Schmidt, 1886 †
  » Species Sheshukovia lahusenii (J.Pantocsek) S.I.Gleser, 1984 † accepted as Entogoniopsis lahusenii (J.Pantocsek) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 †
  » Species Sheshukovia lahusenii (Pantocsek) Gleser, 1975 † accepted as Entogoniopsis lahusenii (J.Pantocsek) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 † (Nom. invalid. Effectively transferred to Sheshukovia in Gleser (1984))
  » Species Sheshukovia oamaruensis (E.Grove & G.Sturt) S.I.Gleser, 1984 † accepted as Entogoniopsis oamaruense (E.Grove & G.Sturt) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 †
  » Species Sheshukovia obesa (Greville) S.I.Gleser, 1984 † accepted as Trilamina obesa (R.K.Greville) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 †
  » Species Sheshukovia polycystinora (Pantocsek) Gleser, 1984 † accepted as Entogoniopsis polycistinora (Pantocsek ex Tempère) N.I.Strelnikova, P.A.Sims, J.Witkowski & D.M.Williams, 2015 †
  » Species Sheshukovia subundosa (Hustedt, 1930) Nikitina in Strelnikova & Nikitina, 2018 † accepted as Sheshukovia subundosa (Hustedt) Z.I.Gleser, 1984 † (Later homonym)
  » Species Sheshukovia alisa Olshtynskaja, 1978 (uncertain, unassessed)
  » Species Sheshukovia ampliangula Olshtynskaja, 1978 (uncertain, unassessed)
  » Species Sheshukovia archangelskiana (Witt) Gleser, 1975 (uncertain, unassessed)
  » Species Sheshukovia condecora (Brightwell) Gleser, 1984 (uncertain, unassessed)
  » Species Sheshukovia cucculata (Pantocsek) Gleser, 1984 (uncertain, unassessed)
  » Species Sheshukovia kakertensis Dolmatova in Dolmatova, Kuklina & Oreshkina, 1984 (uncertain, unassessed)
  » Species Sheshukovia kennettii (Hajos & Stradner) Gleser, 1984 (uncertain, unassessed)
  » Species Sheshukovia kinkeriana (Witt) Gleser, 1984 (uncertain, unassessed)
  » Species Sheshukovia mamilliana (Debes) Gleser, 1984 (uncertain, unassessed)
  » Species Sheshukovia mirabile (Jouse) Fenner, 1994 (uncertain, unassessed)
  » Species Sheshukovia simbirskiana (Pantocsek) Gleser, 1975 (uncertain, unassessed)
  » Species Sheshukovia sparsimpunctata (Jouse) Gleser, 1984 (uncertain, unassessed)
  » Species Sheshukovia weissei (Grunow ex Witt) Z.I.Glezer † (uncertain, unassessed)
Genus Triceratium C.G. Ehrenberg, 1839
  » Species Triceratium acutangulum Grunow
    » Variety Triceratium acutangulum var. grovei Pantocsek, 1886 (uncertain, unassessed)
  » Species Triceratium antillarum Cleve
    » Variety Triceratium antillarum var. antillarum Cleve, 1878 (uncertain, unassessed)
    » Variety Triceratium antillarum var. laetum Pantocsek, 1886 (uncertain, unassessed)
    » Variety Triceratium antillarum var. quadrigonum Cleve & Möller, 1878 (uncertain, unassessed)
  » Species Triceratium archangelskianum O.N.Witt
  » Species Triceratium areolatum Greville
    » Forma Triceratium areolatum f. minor Schmidt in Schmidt et al., 1890 (uncertain, unassessed)
    » Variety Triceratium areolatum var. venosa Grunow in Schmidt et al., 1882 (uncertain, unassessed)
  » Species Triceratium attenuatum R.K.Greville, 1864 †
    » Forma Triceratium attenuatum f. attenuatum Greville, 1864 (uncertain, unassessed)
    » Forma Triceratium attenuatum f. quadrata Brun in Brun et al., 1891 (uncertain, unassessed)
  » Species Triceratium balearicum Cleve, 1881
  » Species Triceratium cancellatum Greville
    » Variety Triceratium cancellatum var. cancellatum Greville, 1865 (uncertain, unassessed)
    » Variety Triceratium cancellatum var. major Tempère & Peragallo, 1915 (uncertain, unassessed)
    » Variety Triceratium cancellatum var. minor Walker & Chase in Chase & Walker, 1887 (uncertain, unassessed)
  » Species Triceratium castellatum T.West
    » Variety Triceratium castellatum var. castellatum West, 1860 (uncertain, unassessed)
    » Variety Triceratium castellatum var. fracta Grunow in Schmidt et al., 1891 (uncertain, unassessed)
    » Variety Triceratium castellatum var. major Schmidt in Schmidt et al., 1882 (uncertain, unassessed)
    » Variety Triceratium castellatum var. quadrata Reinhold, 1937 (uncertain, unassessed)
  » Species Triceratium cellulosum
    » Variety Triceratium cellulosum var. californicum Long, Fuge & Smith, 1946 (uncertain, unassessed)
    » Variety Triceratium cellulosum var. cellulosum Greville, 1861 (uncertain, unassessed)
    » Variety Triceratium cellulosum var. italica Forti, 1913 (uncertain, unassessed)
    » Variety Triceratium cellulosum var. japonicum Brun in Brun & Tempère, 1889 (uncertain, unassessed)
    » Variety Triceratium cellulosum var. majus Walker & Chase in Chase & Walker, 1887 (uncertain, unassessed)
    » Variety Triceratium cellulosum var. simbirskiana Witt, 1885 (uncertain, unassessed)
  » Species Triceratium cinnamomeum Greville
    » Variety Triceratium cinnamomeum var. cinnamomeum Greville, 1863 (uncertain, unassessed)
    » Variety Triceratium cinnamomeum var. minor (Grunow in Van Heurck) Hasle, 1960 (uncertain, unassessed)
  » Species Triceratium circulare A.M.Edwards
    » Forma Triceratium circulare f. 4-appendiculata Grunow in Van Heurck, 1883 (uncertain, unassessed)
    » Forma Triceratium circulare f. circulare Grunow in Van Heurck, 1883 (uncertain, unassessed)
  » Species Triceratium columbi O.N.Witt
    » Variety Triceratium columbi var. columbi Witt in Schmidt et al., 1886 (uncertain, unassessed)
    » Variety Triceratium columbi var. quadrata Reinhold, 1937 (uncertain, unassessed)
  » Species Triceratium conciliatum Pantocsek
    » Variety Triceratium conciliatum var. conciliatum Pantocsek, 1889 (uncertain, unassessed)
    » Variety Triceratium conciliatum var. validior Pantocsek, 1889 (uncertain, unassessed)
  » Species Triceratium condecorum Ehrenberg
    » Variety Triceratium condecorum var. condecorum Ehrenberg, 1844 (1845) (uncertain, unassessed)
    » Variety Triceratium condecorum var. neogradense Grunow ex Pantocsek, 1886 (uncertain, unassessed)
  » Species Triceratium contortum Shadbolt, 1854
    » Forma Triceratium contortum f. contortum Shadbolt, 1854 (uncertain, unassessed)
    » Forma Triceratium contortum f. tetragona A.W.F.Schmidt (uncertain, unassessed)
  » Species Triceratium coscinoides E.Grove & G.Sturt
    » Variety Triceratium coscinoides var. coscinoides Grove & Sturt, 1886 (uncertain, unassessed)
    » Variety Triceratium coscinoides var. quadrata Grove & Sturt, 1887 (uncertain, unassessed)
    » Variety Triceratium coscinoides var. quadrata Tempère & Peragallo, 1915 (uncertain, unassessed)
  » Species Triceratium crenulatum E.Grove & G.Sturt
    » Forma Triceratium crenulatum f. crenulatum Grove & Sturt, 1887 (uncertain, unassessed)
    » Forma Triceratium crenulatum f. gibbosa Grove & Sturt, 1887 (uncertain, unassessed)
  » Species Triceratium cucullatum Pantocsek
    » Variety Triceratium cucullatum var. cucullatum Pantocsek, 1889 (uncertain, unassessed)
    » Variety Triceratium cucullatum var. disseminatopunctata Pantocsek, 1889 (uncertain, unassessed)
    » Variety Triceratium cucullatum var. latior Pantocsek, 1889 (uncertain, unassessed)
    » Variety Triceratium cucullatum var. validior Pantocsek, 1892 (uncertain, unassessed)
  » Species Triceratium curvilimbum J.-J.Brun
    » Variety Triceratium curvilimbum var. curvilimbum Brun in Brun & Tempère, 1889 (uncertain, unassessed)
    » Variety Triceratium curvilimbum var. decorata Brun, 1896 (uncertain, unassessed)
  » Species Triceratium distinctum C.Janisch
  » Species Triceratium dobreeanum G.Norman ex Greville, 1865
  » Species Triceratium dulce Greville
    » Variety Triceratium dulce var. dulce Greville, 1866 (uncertain, unassessed)
    » Variety Triceratium dulce var. japonica Tempère & Brun in Brun & Tempère, 1889 (uncertain, unassessed)
  » Species Triceratium elegans (Greville) Grunow
    » Forma Triceratium elegans f. major Grunow in Van Heurck, 1883 (uncertain, unassessed)
    » Forma Triceratium elegans f. pusilla Grunow in Van Heurck, 1883 (uncertain, unassessed)
    » Variety Triceratium elegans var. japonica Tempère & Brun in Brun & Tempère, 1889 (uncertain, unassessed)
  » Species Triceratium eulensteinii Grunow
  » Species Triceratium exornatum Greville
    » Variety Triceratium exornatum var. ananinense Pantocsek, 1889 (uncertain, unassessed)
    » Variety Triceratium exornatum var. exornatum Greville, 1856 (uncertain, unassessed)
    » Variety Triceratium exornatum var. gigantea Forti, 1913 (uncertain, unassessed)
    » Variety Triceratium exornatum var. robusta Witt in Schmidt et al., 1886 (uncertain, unassessed)
    » Variety Triceratium exornatum var. simbirskiana Pantocsek, 1889 (uncertain, unassessed)
  » Species Triceratium favus Ehrenberg, 1839
    » Forma Triceratium favus f. quadrata (Grunow) Hustedt, 1930 represented as Triceratium favus var. quadrata Grunow, 1885
    » Forma Triceratium favus f. septangulatus (Kitton) represented as Triceratium favus var. septangulatum Kitton, 1874
    » Forma Triceratium favus f. biangulata M. Peragallo, 1903 (uncertain, unassessed)
    » Forma Triceratium favus f. favus Ehrenberg, 1840 (uncertain, unassessed)
    » Forma Triceratium favus f. hexagona Truan y Luard & Witt, 1888 (uncertain, unassessed)
    » Forma Triceratium favus f. octogona Desikachary & Prema in Desikachary, 1989 (uncertain, unassessed)
    » Forma Triceratium favus f. parvum Woodhead & Tweed, 1960 (uncertain, unassessed)
    » Forma Triceratium favus f. pentagona Grove & Sturt, 1887 (uncertain, unassessed)
    » Forma Triceratium favus f. pentagona Truan y Luard & Witt, 1888 (uncertain, unassessed)
    » Forma Triceratium favus f. typica Cleve-Euler, 1951 (uncertain, unassessed)
    » Variety Triceratium favus var. beta Brightwell, 1856 (uncertain, unassessed)
    » Variety Triceratium favus var. heptagona Grunow in Schmidt et al., 1886 (uncertain, unassessed)
    » Variety Triceratium favus var. lateareolata Castracane, 1886 (uncertain, unassessed)
    » Variety Triceratium favus var. maxima Grunow in Van Heurck, 1883 (uncertain, unassessed)
    » Variety Triceratium favus var. pacifica Castracane, 1886 (uncertain, unassessed)
    » Variety Triceratium favus var. pentagona Tempère & Peragallo, 1909 (uncertain, unassessed)
    » Variety Triceratium favus var. planum Ehrenberg, 1845 (uncertain, unassessed)
    » Variety Triceratium favus var. quadrangulum H.L. Smith (uncertain, unassessed)
    » Variety Triceratium favus var. quadrata Grunow, 1885 (uncertain, unassessed)
    » Variety Triceratium favus var. septangulatum Kitton, 1874 (uncertain, unassessed)
    » Variety Triceratium favus var. spinigera Cleve, 1873 (uncertain, unassessed)
    » Variety Triceratium favus var. subconvexa Schmidt in Schmidt et al., 1885 (uncertain, unassessed)
    » Variety Triceratium favus var. turgidum Ehrenberg, 1856 (uncertain, unassessed)
    » Variety Triceratium favus var. ventricosa Kützing, 1849 (uncertain, unassessed)
    » Variety Triceratium favus var. ventricosum Ehrenberg, 1845 (uncertain, unassessed)
  » Species Triceratium flos Ehrenberg
    » Variety Triceratium flos var. duplicatum (Schmidt in Schmidt et al.) Cleve-Euler, 1951 represented as Triceratium duplicatum Schmidt in Schmidt et al., 1882
    » Variety Triceratium flos var. hebetata (Grunow) F.W. Mills, 1935 represented as Biddulphia flos var. hebetata Grunow, 1884
    » Variety Triceratium flos var. ahusiensis Cleve-Euler in Cleve-Euler & Hessland, 1948 (uncertain, unassessed)
    » Variety Triceratium flos var. flos Ehrenberg, 1855 (uncertain, unassessed)
    » Variety Triceratium flos var. genuinum Cleve-Euler, 1951 (uncertain, unassessed)
    » Variety Triceratium flos var. intermedia Schmidt in Schmidt et al., 1886 (uncertain, unassessed)
    » Variety Triceratium flos var. intermedia Forti, 1913 (uncertain, unassessed)
    » Variety Triceratium flos var. italica Forti, 1913 (uncertain, unassessed)
  » Species Triceratium gemmatum A.P.Jousé, 1951 †
  » Species Triceratium gibbosum Harvey & Bailey, 1854
    » Forma Triceratium gibbosum f. 7-oculata Grunow in Schmidt et al., 1882 (uncertain, unassessed)
    » Forma Triceratium gibbosum f. gibbosum Harvey & J.W. Bailey, 1853 (1854) (uncertain, unassessed)
    » Variety Triceratium gibbosum var. crenulata Grunow in Van Heurck, 1883 (uncertain, unassessed)
    » Variety Triceratium gibbosum var. elongata Grunow in Schmidt et al., 1882 (uncertain, unassessed)
    » Variety Triceratium gibbosum var. excisa Grunow in Schmidt et al., 1882 (uncertain, unassessed)
  » Species Triceratium giganteum Greville
  » Species Triceratium godeffroyi Grunow
    » Forma Triceratium godeffroyi f. godeffroyi Grunow in Schmidt et al., 1882 (uncertain, unassessed)
    » Forma Triceratium godeffroyi f. pentagona De Toni, 1894 (uncertain, unassessed)
  » Species Triceratium grande T.Brightwell
    » Variety Triceratium grande var. septangulata (Kitton) Schmidt in Schmidt et al., 1885 represented as Triceratium favus var. septangulatum Kitton, 1874
    » Forma Triceratium grande f. grande Brightwell, 1853 (uncertain, unassessed)
    » Forma Triceratium grande f. pentagona Pantocsek, 1886 (uncertain, unassessed)
    » Forma Triceratium grande f. quadrangularis (Forti) (uncertain, unassessed)
    » Forma Triceratium grande f. quadrata Forti, 1912 (uncertain, unassessed)
    » Variety Triceratium grande var. angulata Kitton in Schmidt et al., 1891 (uncertain, unassessed)
    » Variety Triceratium grande var. grande Forti, 1912 (uncertain, unassessed)
    » Variety Triceratium grande var. pentagona Grunow in Schmidt et al., 1885 (uncertain, unassessed)
    » Variety Triceratium grande var. quadrangularis Forti in Tempère & Peragallo, 1910 (uncertain, unassessed)
    » Variety Triceratium grande var. quadrangulata Tempère & Peragallo, 1909 (uncertain, unassessed)
    » Variety Triceratium grande var. quadrata Tempère & Peragallo, 1912 (uncertain, unassessed)
  » Species Triceratium grovei
    » Variety Triceratium grovei var. boryana Pantocsek, 1892 (uncertain, unassessed)
    » Variety Triceratium grovei var. grovei Pantocsek, 1886 (uncertain, unassessed)
  » Species Triceratium guttatum Cleve
    » Variety Triceratium guttatum var. guttatum Cleve ex Schmidt in Schmidt et al., 1882 (uncertain, unassessed)
    » Variety Triceratium guttatum var. minor Azpeitia, 1911 (uncertain, unassessed)
  » Species Triceratium hardmanianum Greville
    » Variety Triceratium hardmanianum var. hardmanianum Greville, 1865 (uncertain, unassessed)
  » Species Triceratium hardmannianum †
    » Variety Triceratium hardmannianum var. solida Tempère & Peragallo, 1912 (uncertain, unassessed)
  » Species Triceratium harrisonianum G.Norman & Greville
  » Species Triceratium heibergii Grunow
    » Variety Triceratium heibergii var. genuinum Cleve-Euler, 1951 (uncertain, unassessed)
    » Variety Triceratium heibergii var. heibergii Grunow in Van Heurck, 1883 (uncertain, unassessed)
    » Variety Triceratium heibergii var. rostratum Jousé, 1951 (uncertain, unassessed)
    » Variety Triceratium heibergii var. subconvexa Cleve-Euler in Cleve-Euler & Hessland, 1948 (uncertain, unassessed)
  » Species Triceratium horridum Pantocsek
    » Forma Triceratium horridum f. quadrigona Pantocsek, 1889 (uncertain, unassessed)
    » Forma Triceratium horridum f. tetragona Pantocsek, 1889 (uncertain, unassessed)
  » Species Triceratium hybridum
    » Variety Triceratium hybridum var. australis Grunow in Cleve & Grunow, 1880 (uncertain, unassessed)
    » Variety Triceratium hybridum var. hybridum Grunow in Cleve & Grunow, 1880 (uncertain, unassessed)
    » Variety Triceratium hybridum var. kamtschatica Grunow in Cleve & Grunow, 1880 (uncertain, unassessed)
    » Variety Triceratium hybridum var. perforata M. Peragallo, 1921 (uncertain, unassessed)
  » Species Triceratium incisum A.W.F.Schmidt
    » Variety Triceratium incisum var. incisum Schmidt in Schmidt et al., 1882 (uncertain, unassessed)
    » Variety Triceratium incisum var. punctatum (uncertain, unassessed)
  » Species Triceratium inelegans Greville
  » Species Triceratium inornatum Greville
    » Variety Triceratium inornatum var. inornatum Greville, 1862 (uncertain, unassessed)
    » Variety Triceratium inornatum var. subradiatum Grunow in Cleve & Möller, 1879 (uncertain, unassessed)
  » Species Triceratium insigne
    » Forma Triceratium insigne f. insignis Greville, 1861 (uncertain, unassessed)
    » Forma Triceratium insigne f. minor Schmidt in Schmidt et al., 1882 (uncertain, unassessed)
    » Variety Triceratium insigne var. minor (Schmidt in Schmidt et al.) Tempère & Peragallo, 1912 (uncertain, unassessed)
  » Species Triceratium insuave A.Truan y Luard & O.N.Witt
    » Forma Triceratium insuave f. insuave Truan y Luard & Witt, 1888 (uncertain, unassessed)
    » Forma Triceratium insuave f. tetragona Truan y & Witt, 1888 (uncertain, unassessed)
    » Forma Triceratium insuave f. trigona Truan y Luard & Witt, 1888 (uncertain, unassessed)
  » Species Triceratium interjectum A.W.F.Schmidt
    » Forma Triceratium interjectum f. interjectum Schmidt in Schmidt et al., 1891 (uncertain, unassessed)
    » Forma Triceratium interjectum f. quadrata Tempère & Peragallo, 1912 (uncertain, unassessed)
    » Variety Triceratium interjectum var. quadrata (uncertain, unassessed)
    » Variety Triceratium interjectum var. quadrata Tempère & Peragallo, 1915 (uncertain, unassessed)
  » Species Triceratium kainii E.A.Schultze
  » Species Triceratium kolbei F.Hustedt
    » Variety Triceratium kolbei var. kolbei Hustedt in Schmidt et al., 1930 (uncertain, unassessed)
    » Variety Triceratium kolbei var. uralense A.P.Jousé, 1951 (uncertain, unassessed)
  » Species Triceratium laeve
    » Variety Triceratium laeve var. annulifera Grunow in Van Heurck, 1883 (uncertain, unassessed)
    » Variety Triceratium laeve var. laeve Cleve, 1881 (uncertain, unassessed)
  » Species Triceratium latum Greville
  » Species Triceratium lineatum Greville
    » Forma Triceratium lineatum f. biangulata Laporte & Lefebure, 1930 (uncertain, unassessed)
    » Forma Triceratium lineatum f. lineatum Greville, 1863 (uncertain, unassessed)
    » Variety Triceratium lineatum var. biangulata Tempère & Peragallo, 1915 (uncertain, unassessed)
  » Species Triceratium mammiferum Grunow
    » Forma Triceratium mammiferum f. mammiferum Grunow in Van Heurck, 1883 (uncertain, unassessed)
    » Forma Triceratium mammiferum f. minor Grunow in Van Heurck, 1883 (uncertain, unassessed)
  » Species Triceratium megastomum Ehrenberg
    » Forma Triceratium megastomum f. megastomum Ehrenberg, 1845 (uncertain, unassessed)
    » Forma Triceratium megastomum f. quadrata (Grunow) A.Amossé (uncertain, unassessed)
    » Forma Triceratium megastomum f. quadrata Meister, 1932 (uncertain, unassessed)
  » Species Triceratium microstigma Ehrenberg
    » Variety Triceratium microstigma var. microstigma Ehrenberg, 1875 (uncertain, unassessed)
    » Variety Triceratium microstigma var. quadriocellata (Pantocsek; Pantocsek) (uncertain, unassessed)
  » Species Triceratium montereyii T.Brightwell, 1853 †
  » Species Triceratium moronense Greville
    » Variety Triceratium moronense var. moronense Greville, 1865 (uncertain, unassessed)
    » Variety Triceratium moronense var. nicobarica Grunow in Van Heurck, 1883 (uncertain, unassessed)
    » Variety Triceratium moronense var. nicobaricum Grunow in Van Heurck, 1883 (uncertain, unassessed)
  » Species Triceratium multifrons J.-J.Brun
    » Forma Triceratium multifrons f. constricta Schultze ex Hustedt in Schmidt et al., 1959 (uncertain, unassessed)
    » Forma Triceratium multifrons f. multifrons Brun in Brun & Tempère, 1889 (uncertain, unassessed)
    » Forma Triceratium multifrons f. stricta Hustedt in Schmidt et al., 1959 (uncertain, unassessed)
    » Variety Triceratium multifrons var. constricta (uncertain, unassessed)
    » Variety Triceratium multifrons var. stricta (Hustedt in Schmidt et al.) (uncertain, unassessed)
  » Species Triceratium multiplex C.Janisch
    » Forma Triceratium multiplex f. minor Schmidt in Schmidt et al., 1885 (uncertain, unassessed)
    » Forma Triceratium multiplex f. multiplex Janisch in Schmidt et al., 1882 (uncertain, unassessed)
  » Species Triceratium muricatum Brightwell, 1853
    » Variety Triceratium muricatum var. fossilis Grunow ex Pantocsek, 1886 (uncertain, unassessed)
    » Variety Triceratium muricatum var. muricatum Brightwell, 1853 (uncertain, unassessed)
    » Variety Triceratium muricatum var. nudum Pantocsek, 1886 (uncertain, unassessed)
  » Species Triceratium nancoorense Grunow
  » Species Triceratium normanianum Greville
    » Variety Triceratium normanianum var. normanianum Greville, 1863 (uncertain, unassessed)
    » Variety Triceratium normanianum var. sextans Brun, 1896 (uncertain, unassessed)
  » Species Triceratium oculatum Greville
    » Forma Triceratium oculatum f. hillabyana Brun, 1896 (uncertain, unassessed)
    » Forma Triceratium oculatum f. oculatum Greville, 1864 (uncertain, unassessed)
  » Species Triceratium ornatum Greville
    » Forma Triceratium ornatum f. ornatum (Shadbolt) Greville, 1861 (uncertain, unassessed)
    » Forma Triceratium ornatum f. tetragona (uncertain, unassessed)
      » Subforma Triceratium ornatum f. tetragona parva Grunow in Schmidt et al., 1886 (uncertain, unassessed)
    » Variety Triceratium ornatum var. fallaciosum Grunow, 1889 (uncertain, unassessed)
  » Species Triceratium pantocsekii
    » Variety Triceratium pantocsekii var. hexagona Laporte & Lefébure, 1929 represented as Triceratium pantocsekii f. hexagona Pantocsek, 1886
    » Forma Triceratium pantocsekii f. convexa Pantocsek, 1886 (uncertain, unassessed)
    » Forma Triceratium pantocsekii f. genuina Pantocsek, 1886 (uncertain, unassessed)
    » Forma Triceratium pantocsekii f. hexagona Pantocsek, 1886 (uncertain, unassessed)
    » Forma Triceratium pantocsekii f. pantocsekii Schmidt in Schmidt et al., 1886 (uncertain, unassessed)
    » Forma Triceratium pantocsekii f. pentagona Pantocsek, 1886 (uncertain, unassessed)
    » Variety Triceratium pantocsekii var. convexa Tempère & Peragallo, 1915 (uncertain, unassessed)
    » Variety Triceratium pantocsekii var. pentagona (Pantocsek) Tempère & Peragallo, 1915 (uncertain, unassessed)
    » Variety Triceratium pantocsekii var. rectangularis Forti, 1912 (uncertain, unassessed)
  » Species Triceratium papillatum E.Grove & G.Sturt
    » Variety Triceratium papillatum var. acuta Tempère & Peragallo, 1910 (uncertain, unassessed)
    » Variety Triceratium papillatum var. papillatum Grove & Sturt, 1887 (uncertain, unassessed)
  » Species Triceratium parallelum (Ehrenb.) Grev., 1865
    » Forma Triceratium parallelum f. parallelum (Ehrenberg) Greville, 1865 represented as Amphitetras parallela Ehrenberg, 1840
    » Variety Triceratium parallelum var. suecicum (Cleve-Euler) Cleve-Euler, 1951 represented as Pseudostictodiscus parallelus var. suecica Cleve-Euler, 1941
    » Forma Triceratium parallelum f. parva Grunow in Van Heurck, 1883 (uncertain, unassessed)
    » Forma Triceratium parallelum f. trigona Schmidt in Schmidt et al., 1882 (uncertain, unassessed)
    » Forma Triceratium parallelum f. trigona Grunow in Van Heurck, 1883 (uncertain, unassessed)
    » Variety Triceratium parallelum var. balearica Grunow in Schmidt et al., 1885 (uncertain, unassessed)
    » Variety Triceratium parallelum var. coloniensis Grunow in Schmidt et al., 1885 (uncertain, unassessed)
    » Variety Triceratium parallelum var. genuinum Cleve-Euler, 1951 (uncertain, unassessed)
    » Variety Triceratium parallelum var. gibbosa (E.Grove & G.Sturt) E.Grove & G.Sturt (uncertain, unassessed)
    » Variety Triceratium parallelum var. madagascarensis Grunow in Van Heurck, 1883 (uncertain, unassessed)
    » Variety Triceratium parallelum var. sparsa Grunow in Van Heurck, 1883 (uncertain, unassessed)
    » Variety Triceratium parallelum var. trigona Grunow in Van Heurck, 1883 (uncertain, unassessed)
    » Variety Triceratium parallelum var. trigona-parva A. Schmidt, 1882 (uncertain, unassessed)
  » Species Triceratium pentacrinus (Ehrenberg) Wallich, 1858
    » Forma Triceratium pentacrinus f. pentacrinus (Ehrenberg) Wallich, 1858 represented as Amphipentas pentacrinus Ehrenberg, 1841 †
    » Forma Triceratium pentacrinus f. minor A. Schmidt, 1886 (uncertain, unassessed)
    » Forma Triceratium pentacrinus f. quadrata Forti in Tempère & Peragallo, 1909 (uncertain, unassessed)
    » Forma Triceratium pentacrinus f. quadrata Hustedt, 1930 (uncertain, unassessed)
    » Variety Triceratium pentacrinus var. 4-gona Wallich, 1858 (uncertain, unassessed)
    » Variety Triceratium pentacrinus var. hirsutus (Castracane) M. Peragallo, 1903 (uncertain, unassessed)
    » Variety Triceratium pentacrinus var. quadrata Forti, 1910 (uncertain, unassessed)
    » Variety Triceratium pentacrinus var. quadrata Tempère & Peragallo, 1908 (uncertain, unassessed)
  » Species Triceratium peragalli
    » Variety Triceratium peragalli var. subrotunda Brun in Schmidt et al., 1891 (uncertain, unassessed)
  » Species Triceratium pileolus Ehrenberg
    » Variety Triceratium pileolus var. minuta Hustedt in Schmidt et al., 1930 (uncertain, unassessed)
    » Variety Triceratium pileolus var. pileolus Ehrenberg, 1844 (uncertain, unassessed)
  » Species Triceratium pileus Ehrenberg
    » Forma Triceratium pileus f. quadrigona Pantocsek, 1908 (uncertain, unassessed)
    » Forma Triceratium pileus f. robustior Pantocsek, 1892 (uncertain, unassessed)
    » Variety Triceratium pileus var. pileus Ehrenberg, 1840 (uncertain, unassessed)
  » Species Triceratium plicatum Grunow
    » Variety Triceratium plicatum var. obtusa Brun, 1896 (uncertain, unassessed)
    » Variety Triceratium plicatum var. plicatum Grunow in Van Heurck, 1883 (uncertain, unassessed)
  » Species Triceratium praetenue R.K.Greville, 1864 †
  » Species Triceratium punctatum Brightwell, 1856
    » Forma Triceratium punctatum f. hexagona Grunow in Schmidt et al., 1885 (uncertain, unassessed)
    » Forma Triceratium punctatum f. pentagona Grunow in A. Schmidt, 1885 (uncertain, unassessed)
    » Forma Triceratium punctatum f. punctatum Brightwell, 1856 (uncertain, unassessed)
    » Forma Triceratium punctatum f. tetragona Heiden & Kolbe, 1928 (uncertain, unassessed)
    » Forma Triceratium punctatum f. tetragona Schmidt in Schmidt et al., 1886 (uncertain, unassessed)
    » Forma Triceratium punctatum f. tetragona Grunow in Van Heurck, 1883 (uncertain, unassessed)
    » Forma Triceratium punctatum f. trigona Grunow in Van Heurck, 1883 (uncertain, unassessed)
    » Variety Triceratium punctatum var. pentagona Tempère & Peragallo, 1915 (uncertain, unassessed)
    » Variety Triceratium punctatum var. quadragona Tempère & Peragallo, 1908 (uncertain, unassessed)
  » Species Triceratium radians J.A.Tempère & J.-J.Brun
    » Forma Triceratium radians f. quadrata Brun in Schmidt et al., 1891 (uncertain, unassessed)
    » Forma Triceratium radians f. radians Tempère & Brun in Brun & Tempère, 1889 (uncertain, unassessed)
    » Variety Triceratium radians var. italica Forti, 1912 (uncertain, unassessed)
    » Variety Triceratium radians var. quadrata Tempère & Peragallo, 1915 (uncertain, unassessed)
  » Species Triceratium radiatum T.Brightwell
    » Variety Triceratium radiatum var. minor Schmidt in Schmidt et al., 1890 (uncertain, unassessed)
    » Variety Triceratium radiatum var. radiatum Brightwell, 1856 (uncertain, unassessed)
  » Species Triceratium radio-punctatum
    » Forma Triceratium radio-punctatum f. minor Pantocsek, 1886 (uncertain, unassessed)
  » Species Triceratium repletum Greville
    » Forma Triceratium repletum f. balearicum Kisselev, 1931 (uncertain, unassessed)
    » Forma Triceratium repletum f. repletum Greville, 1866 (uncertain, unassessed)
    » Variety Triceratium repletum var. balearica Grunow in Van Heurck, 1883 (uncertain, unassessed)
  » Species Triceratium reticulum Ehrenberg, 1844
    » Forma Triceratium reticulum f. hexagonale Ricard, 1975 (uncertain, unassessed)
    » Forma Triceratium reticulum f. pentagona Cleve-Euler, 1951 (uncertain, unassessed)
    » Forma Triceratium reticulum f. pentagona Hustedt, 1930 (uncertain, unassessed)
    » Forma Triceratium reticulum f. quadrangularis Hustedt, 1930 (uncertain, unassessed)
    » Forma Triceratium reticulum f. reticulum Ehrenberg, 1844 (uncertain, unassessed)
    » Forma Triceratium reticulum f. tetragona Cleve-Euler (uncertain, unassessed)
    » Forma Triceratium reticulum f. trigona Cleve-Euler, 1951 (uncertain, unassessed)
    » Forma Triceratium reticulum f. trigona-minuta A. Cleve-Euler (uncertain, unassessed)
  » Species Triceratium rugosum E.Grove & G.Sturt, 1887 †
  » Species Triceratium scitulum T.Brightwell
    » Forma Triceratium scitulum f. quadrangulata Tempère & Peragallo, 1909 (uncertain, unassessed)
    » Forma Triceratium scitulum f. quadrata Schmidt in Schmidt et al., 1885 (uncertain, unassessed)
    » Forma Triceratium scitulum f. scitulum Brightwell, 1853 (uncertain, unassessed)
  » Species Triceratium sendaiense A.W.F.Schmidt
  » Species Triceratium sentum Witt
    » Forma Triceratium sentum f. maior Hustedt in Schmidt et al., 1959 (uncertain, unassessed)
    » Forma Triceratium sentum f. sentum Witt in Schmidt et al., 1890 (uncertain, unassessed)
  » Species Triceratium shadboldtianum
  » Species Triceratium solenoceros Ehrenberg
    » Variety Triceratium solenoceros var. minor Pantocsek, 1889 (uncertain, unassessed)
    » Variety Triceratium solenoceros var. solenoceros Ehrenberg, 1844 (1845) (uncertain, unassessed)
  » Species Triceratium suborbiculare Pantocsek
    » Variety Triceratium suborbiculare var. latilimba Forti, 1910 (uncertain, unassessed)
    » Variety Triceratium suborbiculare var. subcyclica Forti, 1910 (uncertain, unassessed)
    » Variety Triceratium suborbiculare var. suborbiculare Pantocsek, 1889 (uncertain, unassessed)
  » Species Triceratium suborbicularis
  » Species Triceratium thumii A.W.F.Schmidt
    » Variety Triceratium thumii var. quadrata Tempère & Peragallo, 1908 (uncertain, unassessed)
    » Variety Triceratium thumii var. thumii Schmidt in Schmidt et al., 1886 (uncertain, unassessed)
  » Species Triceratium trinitas J.-J.Brun
    » Variety Triceratium trinitas var. minima Brun in Schmidt et al., 1891 (uncertain, unassessed)
    » Variety Triceratium trinitas var. stricta Hustedt in Schmidt et al., 1930 (uncertain, unassessed)
    » Variety Triceratium trinitas var. trinitas Brun in Schmidt et al., 1891 (uncertain, unassessed)
  » Species Triceratium tripecten J.-J.Brun
    » Variety Triceratium tripecten var. spathulata Brun, 1896 (uncertain, unassessed)
    » Variety Triceratium tripecten var. tripecten Brun, 1896 (uncertain, unassessed)
  » Species Triceratium tripos Cleve
    » Forma Triceratium tripos f. major Schmidt in Schmidt et al., 1885 (uncertain, unassessed)
    » Forma Triceratium tripos f. tripos Cleve, 1881 (uncertain, unassessed)
    » Variety Triceratium tripos var. microtis Pantocsek, 1886 (uncertain, unassessed)
  » Species Triceratium trisulcum Bailey
    » Variety Triceratium trisulcum var. acutiloba Forti in Tempère & Peragallo, 1909 (uncertain, unassessed)
    » Variety Triceratium trisulcum var. cuneata Grunow in A. Schmidt, 1890 (uncertain, unassessed)
    » Variety Triceratium trisulcum var. cuneata Fricke, 1902 (uncertain, unassessed)
    » Variety Triceratium trisulcum var. cuneata sensu Forti, 1910 (uncertain, unassessed)
    » Variety Triceratium trisulcum var. haytiana Truan y Luard & Witt, 1888 (uncertain, unassessed)
    » Variety Triceratium trisulcum var. hungarica Pantocsek, 1886 (uncertain, unassessed)
    » Variety Triceratium trisulcum var. minor Cleve, 1885 (uncertain, unassessed)
    » Variety Triceratium trisulcum var. miocenica Forti, 1913 (uncertain, unassessed)
    » Variety Triceratium trisulcum var. moravica Pantocsek ex Tempère & Peragallo, 1909 (uncertain, unassessed)
    » Variety Triceratium trisulcum var. producta Truan y Luard & Witt, 1888 (uncertain, unassessed)
    » Variety Triceratium trisulcum var. trisulcum J.W. Bailey ex Ralfs in Pritchard, 1861 (uncertain, unassessed)
    » Variety Triceratium trisulcum var. valida Forti, 1912 (uncertain, unassessed)
  » Species Triceratium tumidum Greville
    » Variety Triceratium tumidum var. costulata Grunow in Schmidt et al., 1882 (uncertain, unassessed)
    » Variety Triceratium tumidum var. tumidum Greville, 1863 (uncertain, unassessed)
  » Species Triceratium validum Grunow
    » Forma Triceratium validum f. italica Forti, 1912 (uncertain, unassessed)
    » Forma Triceratium validum f. validum Grunow in Schmidt et al., 1886 (uncertain, unassessed)
  » Species Triceratium variabile Brightw., 1856
  » Species Triceratium venulosum Greville
  » Species Triceratium versicolor
    » Forma Triceratium versicolor f. acutangula Schmidt in Schmidt et al., 1891 (uncertain, unassessed)
    » Forma Triceratium versicolor f. typica Brun in Schmidt et al., 1891 (uncertain, unassessed)
    » Forma Triceratium versicolor f. versicolor Brun in Schmidt et al., 1891 (uncertain, unassessed)
    » Variety Triceratium versicolor var. cuneata Brun in Schmidt et al., 1891 (uncertain, unassessed)
    » Variety Triceratium versicolor var. trigona Peragallo & Peragallo, 1911 (uncertain, unassessed)
  » Species Triceratium wittii A.W.F.Schmidt
    » Forma Triceratium wittii f. hexagona (Pantocsek) Pantocsek, 1889 represented as Triceratium pantocsekii f. hexagona Pantocsek, 1886
    » Forma Triceratium wittii f. italica (uncertain, unassessed)
      » Subforma Triceratium wittii f. italica quadrata Forti in Tempère & Peragallo, 1912 (uncertain, unassessed)
    » Forma Triceratium wittii f. quadrata Forti, 1912 (uncertain, unassessed)
      » Subforma Triceratium wittii f. quadrata major Forti, 1913 (uncertain, unassessed)
    » Forma Triceratium wittii f. trigona Forti, 1913 (uncertain, unassessed)
    » Forma Triceratium wittii f. wittii Schmidt in Schmidt et al., 1886 (uncertain, unassessed)
    » Variety Triceratium wittii var. hexagona Tempère & Peragallo, 1915 (uncertain, unassessed)
  » Species Triceratium zonatulatum Greville
    » Forma Triceratium zonatulatum f. trigona Schmidt in Schmidt et al., 1886 (uncertain, unassessed)
    » Forma Triceratium zonatulatum f. zonulatum Greville, 1865 (uncertain, unassessed)
  » Species Triceratium zonulatum Greville
  » Species Triceratium adspersum (Mann) F.W. Mills, 1935 represented as Trigonium adspersum Mann, 1907
  » Species Triceratium alternans (Ehrenberg) Schütt, 1896 represented as Amphipentas alternans Ehrenberg, 1843 †
  » Species Triceratium americanum (J.W. Bailey) Cleve-Euler, 1951 represented as Tetragramma americana Bailey, 1854
    » Variety Triceratium americanum var. americanum Ralfs in Pritchard, 1861 (uncertain, unassessed)
    » Variety Triceratium americanum var. quadrata Grove & Sturt, 1886 (uncertain, unassessed)
  » Species Triceratium anissimovae (Jousé) Strelnikova, 1974 represented as Trinacria anissimovii Jousé, 1949
  » Species Triceratium barboi (Brun) Desikachary & Devi, 1986 represented as Capsula barboi Brun, 1896
  » Species Triceratium centralis (Boyer) VanLandingham, 1968 represented as Biddulphia centralis Boyer, 1922
  » Species Triceratium clypeolus (Boyer) VanLandingham, 1968 represented as Biddulphia clypeolus Boyer, 1922
  » Species Triceratium coronatum (Witt) Strelnikova, 1974 represented as Trinacria coronata Witt, 1885 †
  » Species Triceratium cruciatum (Janisch & Rabenhorst) Cleve, 1878 represented as Amphitetras cruciata Janisch & Rabenhorst, 1863
  » Species Triceratium cruciferum (Kitton) Grunow in Van Heurck, 1883 represented as Amphitetras crucifera Kitton in Ralfs in Pritchard, 1861
  » Species Triceratium cruvinervia (Boyer) VanLandingham, 1968 represented as Biddulphia curvinervia C.S.Boyer, 1922 †
  » Species Triceratium diaphanum (Mann) F.W. Mills, 1935 represented as Trigonium diaphanum A.Mann, 1925
  » Species Triceratium discursum (Mann) VanLandingham, 1968 represented as Biddulphia discursa Mann, 1925
  » Species Triceratium dubium Brightwell, 1859 represented as Pseudictyota dubium (Brightwell) P.A. Sims & D. M. Williams in Sims et al., 2018
    » Variety Triceratium dubium var. dubium Brightwell, 1859 (uncertain, unassessed)
    » Variety Triceratium dubium var. irregularis Grunow in Schmidt et al., 1886 (uncertain, unassessed)
  » Species Triceratium exactum (Mann) F.W. Mills, 1935 represented as Biddulphia exacta Mann, 1925
  » Species Triceratium exactum (Mann) VanLandingham, 1968 represented as Biddulphia exacta Mann, 1925
  » Species Triceratium excavatum (Heiberg) Strelnikova, 1974 represented as Trinacria excavata f. excavata Heiberg, 1863
  » Species Triceratium falcatum (Boyer) VanLandingham, 1968 represented as Biddulphia falcata Boyer, 1922
  » Species Triceratium fractosum (Mann) VanLandingham, 1968 represented as Biddulphia fractosa Mann, 1925
  » Species Triceratium frickei (Van Heurck) VanLandingham, 1968 represented as Biddulphia frickei Van Heurck, 1909
  » Species Triceratium fulvum (Boyer) VanLandingham, 1968 represented as Biddulphia fulva Boyer, 1922
  » Species Triceratium graeffianum (Witt) M. Peragallo, 1897 represented as Amphitetras graeffeiana Witt, 1873
  » Species Triceratium hebetatum (Grunow) Thum represented as Triceratium irregulare var. hebetata Grunow in Van Heurck, 1883
  » Species Triceratium hexagonalis (Boyer) VanLandingham, 1968 represented as Biddulphia hexagonalis Boyer, 1922
  » Species Triceratium indefinitum (Jousé) Strelnikova, 1974 represented as Trinacria indefinita Jousé, 1951 †
  » Species Triceratium inversum (Mann) VanLandingham, 1968 represented as Biddulphia inversa ‘Mann' Mills, 1925
  » Species Triceratium megaporus (Ehrenberg) M. Peragallo, 1903 represented as Coscinodiscus megaporus Ehrenberg, 1861
  » Species Triceratium minutissima (Greville) F.W. Mills, 1934 represented as Biddulphia minutissima Greville, 1886
  » Species Triceratium nobile (Greville) Cleve, 1885 represented as Amphitetras nobilis Greville, 1865
  » Species Triceratium nova zealandicum (Grove & Sturt) Grunow, 1888 represented as Triceratium dobreeanum var. novazealandica Grove & Sturt, 1886 †
  » Species Triceratium novae seelandiae (Grove & Sturt) Schmidt, 1888 represented as Triceratium dobreeanum var. novazealandica Grove & Sturt, 1886 †
  » Species Triceratium parvulum (Greville) M. Peragallo represented as Amphitetras parvula Greville, 1863
  » Species Triceratium pelagicum (J.L.B.Schröder) Sournia, 1968 represented as Biddulphia pelagica J.L.B.Schröder, 1908
  » Species Triceratium pellucida (Castracane) Guo, Ye & Zhou, 1982 represented as Biddulphia pellucida Castracane, 1886
  » Species Triceratium radfordianum (Castracane) F.W. Mills, 1935 represented as Stictodiscus radfordianus Castracane, 1886
  » Species Triceratium radiatum (Greville) M. Peragallo, 1897 represented as Amphitetras radiata Greville, 1862
  » Species Triceratium rudis (Mann) VanLandingham, 1968 represented as Biddulphia rudis Mann, 1925
  » Species Triceratium rusticum (Mann) F.W. Mills, 1935 represented as Trigonium rusticum Mann, 1907
  » Species Triceratium sanpedroana (Mereschkowsky) F.W. Mills, 1935 represented as Biddulphia sanpedroana Mereschkowsky, 1900
  » Species Triceratium septangulatum (Kitton) H.L. Smith, 1874-1879 represented as Triceratium favus var. septangulatum Kitton, 1874
  » Species Triceratium subrotundatum A.W.F.Schmidt represented as Amphitetras subrotundata Janisch in Schmidt et al., 1886
    » Forma Triceratium subrotundatum f. italica Forti, 1913 (uncertain, unassessed)
    » Forma Triceratium subrotundatum f. subrotundatum Schmidt in Schmidt et al., 1886 (uncertain, unassessed)
  » Species Triceratium tessela (Krotov) Strelnikova, 1974 represented as Trinacria tessela Krotov, 1959 †
  » Species Triceratium testudo J.-J.Brun represented as Tabulina testudo Brun in Brun & Tempère, 1889 †
  » Species Triceratium trilingulatum T.Brightwell represented as Actinocyclus trilingulatus Brightwell, 1860
  » Species Triceratium turrigerum (Mann) VanLandingham, 1968 represented as Biddulphia turrigera Mann, 1925
  » Species Triceratium abyssorum Grunow † accepted as Medlinia abyssorum (Grunow) P.A.Sims, 1998 † (synonym)
    » Variety Triceratium abyssorum var. abyssorum Grunow in Van Heurck, 1883 (uncertain, unassessed)
    » Variety Triceratium abyssorum var. saratovianum Pantocsek, 1889 (uncertain, unassessed)
  » Species Triceratium alternans Bailey, 1851 accepted as Trigonium alternans (Bailey) A.Mann, 1907 (synonym)
    » Variety Triceratium alternans var. tenuipunctata Mereschkowsky, 1902 (uncertain, unassessed)
  » Species Triceratium amblyoceros Ehrenberg accepted as Symbolophora amblyoceros (Ehrenberg) Hasle & Sims, 1986 (synonym)
    » Variety Triceratium amblyoceros var. nankoorense Grunow, 1867 (uncertain, unassessed)
  » Species Triceratium antediluvianum (Ehrenberg) Grunow, 1868 accepted as Biddulphia antediluviana (Ehrenberg) Van Heurck, 1885 (synonym)
    » Forma Triceratium antediluvianum f. antediluvianum (Ehrenberg) Grunow, 1867 (1870) represented as Amphitetras antediluviana var. antediluviana Ehrenberg, 1840
    » Variety Triceratium antediluvianum var. minutum (Greville) M. Peragallo, 1903 represented as Amphitetras minuta Greville, 1861
    » Forma Triceratium antediluvianum f. cellulosa M. Peragallo, 1929 (uncertain, unassessed)
    » Forma Triceratium antediluvianum f. pentagona Hustedt, 1930 (uncertain, unassessed)
      » Subforma Triceratium antediluvianum f. pentagona abnormis M. Peragallo, 1929 (uncertain, unassessed)
    » Variety Triceratium antediluvianum var. trigona M. Peragallo in Peragallo & Peragallo, 1911 (uncertain, unassessed)
    » Variety Triceratium antediluvianum var. typicum Cleve-Euler, 1951 (uncertain, unassessed)
  » Species Triceratium antipodum J.Pantocsek, 1892 † accepted as Entogoniopsis foveata (R.K. Greville) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 †
  » Species Triceratium arcticum Brightwell, 1853 accepted as Trigonium arcticum (Brightwell) Cleve, 1868 (synonym)
    » Forma Triceratium arcticum f. pentagona [no author] according to Boyer (uncertain, unassessed)
    » Forma Triceratium arcticum f. quinquegona Pantocsek, 1886 (uncertain, unassessed)
    » Forma Triceratium arcticum f. quinquelobata (Greville) Grove & Sturt, 1887 (uncertain, unassessed)
    » Variety Triceratium arcticum var. antarctica Grunow (uncertain, unassessed)
    » Variety Triceratium arcticum var. charcotii M. Peragallo, 1921 (uncertain, unassessed)
    » Variety Triceratium arcticum var. hybridum Grunow in Cleve & Grunow, 1880 (uncertain, unassessed)
    » Variety Triceratium arcticum var. japonica Grunow in Schmidt et al., 1882 (uncertain, unassessed)
    » Variety Triceratium arcticum var. lucida Tempère & Brun in Brun & Tempère, 1889 (uncertain, unassessed)
    » Variety Triceratium arcticum var. major M. Peragallo, 1921 (uncertain, unassessed)
    » Variety Triceratium arcticum var. mitsukeensis W.Ichikawa (uncertain, unassessed)
    » Variety Triceratium arcticum var. neapolitana Grunow in Cleve & Grunow, 1880 (uncertain, unassessed)
    » Variety Triceratium arcticum var. robusta Truan y Luard & Witt, 1888 (uncertain, unassessed)
    » Variety Triceratium arcticum var. samoensis Grunow (uncertain, unassessed)
    » Variety Triceratium arcticum var. sexangulatum ‘J. A. Schulze' Boyer (uncertain, unassessed)
    » Variety Triceratium arcticum var. spitzbergensis Grunow in Cleve & Grunow, 1880 (uncertain, unassessed)
    » Variety Triceratium arcticum var. tetragona Grunow in Cleve & Grunow, 1880 (uncertain, unassessed)
    » Variety Triceratium arcticum var. vulcanica Tempère & Brun in Brun & Tempère, 1889 (uncertain, unassessed)
  » Species Triceratium armasevskii Pantocsek, 1905 † accepted as Entogoniopsis armashevskii (J.Pantocsek) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 †
  » Species Triceratium armatum Roper, 1854 accepted as Triceratium spinosum J.W.Bailey, 1844 (synonym)
    » Variety Triceratium armatum var. alpha Brightwell, 1856 (uncertain, unassessed)
    » Variety Triceratium armatum var. armatum Roper, 1854 (uncertain, unassessed)
    » Variety Triceratium armatum var. beta Brightwell, 1856 (uncertain, unassessed)
    » Variety Triceratium armatum var. compacta (Brightwell ex Ralfs in Pritchard) (uncertain, unassessed)
    » Variety Triceratium armatum var. delta Castracane, 1886 (uncertain, unassessed)
    » Variety Triceratium armatum var. gamma Brightwell, 1856 (uncertain, unassessed)
    » Variety Triceratium armatum var. horrida (Brightwell) (uncertain, unassessed)
  » Species Triceratium balaniferum J.Tempère & J.Brun in J.Brun & J.Tempère, 1889 † accepted as Entogoniopsis balanifera (J.Tempère & J.Brun) J. Witkowski, P.A. Sims, N.I. Strelnikova & D.M. Williams, 2015 †
  » Species Triceratium brachiatum T.Brightwell, 1856 † accepted as Fenneria brachiata (T.Brightwell) J.Witkowski, 2018 †
  » Species Triceratium brightwellii T.West, 1860 accepted as Ditylum brightwellii (T.West) Grunow, 1885
    » Variety Triceratium brightwellii var. brightwellii West, 1860 (uncertain, unassessed)
    » Variety Triceratium brightwellii var. inaequalis Grunow in Van Heurck, 1883 (uncertain, unassessed)
    » Variety Triceratium brightwellii var. tetragona Grunow in Van Heurck, 1883 (uncertain, unassessed)
    » Variety Triceratium brightwellii var. trigona Grunow in Van Heurck, 1883 (uncertain, unassessed)
  » Species Triceratium cornutum R.K.Greville † accepted as Trinacria cornuta (R.K.Greville) P.A.Sims & R.Ross, 1988 †
    » Forma Triceratium cornutum f. pentagona Grunow in Van Heurck, 1883 (uncertain, unassessed)
    » Forma Triceratium cornutum f. pulchella Grunow in Van Heurck, 1883 (uncertain, unassessed)
    » Forma Triceratium cornutum f. tetragona Grunow in Van Heurck, 1883 (uncertain, unassessed)
  » Species Triceratium curvicostatum J.Brun, 1896 † accepted as Entogoniopsis curvicostata (J.Brun) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 †
  » Species Triceratium denticulatum Greville, 1863 † accepted as Trilamina denticulata (R.K.Greville) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 †
    » Variety Triceratium denticulatum var. minus Grunow, 1867 (uncertain)
  » Species Triceratium dutertrei Pantocsek & Tempère in Pantocsek, 1889 † accepted as Entogoniopsis dutertrei (Pantocsek & Tempère) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 †
  » Species Triceratium dutertrei Pantocsek & Tempère in Brun et al., 1890 † accepted as Entogoniopsis dutertrei (Pantocsek & Tempère) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 †
  » Species Triceratium figuratum R.K.Greville, 1865 † accepted as Trilamina figurata (R.K.Greville) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 †
  » Species Triceratium formosum T.Brightwell, 1856 accepted as Trigonium formosum (Brightwell) Cleve, 1867 (synonym)
  » Species Triceratium forresterii F.S.C.Reed, 1946 † accepted as Entogoniopsis polycistinora (Pantocsek ex Tempère) N.I.Strelnikova, P.A.Sims, J.Witkowski & D.M.Williams, 2015 †
  » Species Triceratium foveatum R.K.Greville, 1864 † accepted as Entogoniopsis foveata (R.K. Greville) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 †
  » Species Triceratium globulifer J.Brun, 1891 † accepted as Entogoniopsis polycistinora (Pantocsek ex Tempère) N.I.Strelnikova, P.A.Sims, J.Witkowski & D.M.Williams, 2015 †
  » Species Triceratium grave A. Schmidt, 1882 † accepted as Entogoniopsis tabellaria (T.Brightwell) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015
  » Species Triceratium hannaianum Hustedt in Schmidt et al., 1930 † accepted as Entogoniopsis hannaiana (F.Hustedt) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 †
  » Species Triceratium inconspicuum Greville, 1861 † accepted as Fenneria brachiata (T.Brightwell) J.Witkowski, 2018 †
    » Variety Triceratium inconspicuum var. trilobata Fenner, 1978 (uncertain, unassessed)
  » Species Triceratium inflatum R.K.Greville, 1863 † accepted as Entogoniopsis inflata (Greville) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 †
  » Species Triceratium irregulare Greville, 1864 accepted as Eurossia irregularis (R.K.Greville) P.A.Sims, 1993 †
    » Variety Triceratium irregulare var. hebetata Grunow in Van Heurck, 1883 (uncertain, unassessed)
    » Variety Triceratium irregulare var. irregulare Greville, 1864 (uncertain, unassessed)
    » Variety Triceratium irregulare var. spinifera Reinhold, 1937 (uncertain, unassessed)
    » Variety Triceratium irregulare var. tabellata Grunow ex Prochazka, 1923 (uncertain, unassessed)
  » Species Triceratium junctum A.W.F.Schmidt, 1886 accepted as Biddulphia juncta (A.Schmidt) A.Mann, 1925 (synonym)
    » Forma Triceratium junctum f. 5-gona Bergon et al., 1890 (uncertain, unassessed)
    » Variety Triceratium junctum var. fossile Pantocsek, 1889 (uncertain, unassessed)
    » Variety Triceratium junctum var. junctum Schmidt in Schmidt et al., 1886 (uncertain, unassessed)
  » Species Triceratium kanayae J.Fenner, 1984 † accepted as Fenneria kanayae (J.Fenner) J.Witkowski, 2018 †
  » Species Triceratium lahusenii J.Pantocsek, 1889 † accepted as Entogoniopsis lahusenii (J.Pantocsek) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 †
  » Species Triceratium lineolatum R.K.Greville, 1863 † accepted as Entogoniopsis lineolata (R.K.Greville) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 †
    » Variety Triceratium lineolatum var. gratiosa Brun, 1896 (uncertain, unassessed)
    » Variety Triceratium lineolatum var. lineolatum Greville, 1863 (uncertain, unassessed)
  » Species Triceratium lobatogemmatum J.-J.Brun, 1896 † accepted as Entogoniopsis foveata (R.K. Greville) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 †
    » Variety Triceratium lobatogemmatum var. lobatogemmatum Brun, 1896 (uncertain, unassessed)
    » Variety Triceratium lobatogemmatum var. ornata J.Brun, 1896 † (uncertain)
  » Species Triceratium lobatum R.K.Greville, 1863 † accepted as Trilamina lobata (R.K.Greville) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 †
  » Species Triceratium majus (E.Grove & G.Sturt) A.Grunow, 1888 † accepted as Entogoniopsis major J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 †
  » Species Triceratium malleus Brightwell, 1858 accepted as Bellerochea malleus (Brightwell) Van Heurck, 1885 (synonym)
    » Variety Triceratium malleus var. malleus Brightwell, 1858 (uncertain, unassessed)
    » Variety Triceratium malleus var. tetragona Grunow in Van Heurck, 1883 (uncertain, unassessed)
  » Species Triceratium morlandii E.Grove & G.Sturt, 1887 † accepted as Entogoniopsis morlandii (Grove & Sturt) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 †
    » Variety Triceratium morlandii var. aperta Grunow, 1889 † (nomen nudum)
    » Variety Triceratium morlandii var. flexuosa Grove & Sturt in Grunow, 1888 (uncertain, unassessed)
    » Variety Triceratium morlandii var. morlandii Grove & Sturt, 1887 (uncertain, unassessed)
    » Variety Triceratium morlandii var. partitus (uncertain, unassessed)
    » Variety Triceratium morlandii var. patens Grove Collection (uncertain, unassessed)
    » Variety Triceratium morlandii var. rigida Grove Collection (uncertain, unassessed)
    » Variety Triceratium morlandii var. simplex Grove Collection (uncertain, unassessed)
    » Variety Triceratium morlandii var. subaperta Grunow, 1889 (uncertain, unassessed)
  » Species Triceratium nitescens R.K.Greville, 1865 † accepted as Trilamina nitescens (R.K.Greville) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 †
  » Species Triceratium oamaruense E.Grove & G.Sturt † accepted as Entogoniopsis oamaruense (E.Grove & G.Sturt) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 †
    » Variety Triceratium oamaruense var. oamaruense Grove & Sturt, 1887 (uncertain, unassessed)
    » Variety Triceratium oamaruense var. sparsipunctata Grove in Schmidt et al., 1890 (uncertain, unassessed)
  » Species Triceratium obesum R.K.Greville, 1864 † accepted as Trilamina obesa (R.K.Greville) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 †
  » Species Triceratium obscurum Greville accepted as Azpeitia obscura (Greville) P.A. Sims in Williams, 1988 (synonym)
    » Forma Triceratium obscurum f. minor Schmidt in Schmidt et al., 1882 (uncertain, unassessed)
    » Forma Triceratium obscurum f. obscurum Greville, 1861 (uncertain, unassessed)
  » Species Triceratium pallidum R.K.Greville, 1864 † accepted as Entogoniopsis tabellaria (T.Brightwell) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015
  » Species Triceratium picturatum R.K.Greville, 1866 † accepted as Entogoniopsis foveata (R.K. Greville) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 †
    » Variety Triceratium picturatum var. heterostictum (uncertain, unassessed)
  » Species Triceratium polycistinorum J.Pantocsek ex J.Tempère, 1892 † accepted as Entogoniopsis polycistinora (Pantocsek ex Tempère) N.I.Strelnikova, P.A.Sims, J.Witkowski & D.M.Williams, 2015 †
  » Species Triceratium productum R.K.Greville, 1861 † accepted as Entogoniopsis truncata (T.Brightwell) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 †
    » Variety Triceratium productum var. balearicum Cleve & Grunow in Cleve & Moller, 1878 (uncertain, unassessed)
    » Variety Triceratium productum var. productum Greville, 1861 (uncertain, unassessed)
  » Species Triceratium pseudonervatum E.Grove & G.Sturt, 1887 accepted as Entogoniopsis pseudonervata (E.Grove & G.Sturt) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 †
  » Species Triceratium quadratum R.K.Greville, 1865 † accepted as Entogoniopsis lineolata (R.K.Greville) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 †
  » Species Triceratium reedii T.V.Desikachary & P.M.Sreelatha, 1989 † accepted as Entogoniopsis polycistinora (Pantocsek ex Tempère) N.I.Strelnikova, P.A.Sims, J.Witkowski & D.M.Williams, 2015 †
  » Species Triceratium riedyi (G D.Hanna & W.M.Grant) T.Reinhold, 1937 accepted as Entogoniopsis tabellaria (T.Brightwell) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015
  » Species Triceratium saratovianum Pantocsek, 1889 † accepted as Entogoniopsis saratoviana (J.Pantocsek) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 †
  » Species Triceratium sculptum Shadbolt, 1854 accepted as Biddulphia sculpta (Shadbolt) Van Heurck, 1885
    » Variety Triceratium sculptum var. petropolitana Grunow in Van Heurck, 1883 (uncertain, unassessed)
    » Variety Triceratium sculptum var. sculptum Shadbolt, 1854 (uncertain, unassessed)
  » Species Triceratium semicirculare Brightwell accepted as Euodiella semicircularis (Brightwell) P.A.Sims, 2000 † (synonym)
  » Species Triceratium shadboltianum R.K. Greville, 1862 accepted as Lampriscus shadboldtianum (Greville) H.Peragallo & M.Peragallo, 1902 (synonym)
  » Species Triceratium sol Grunow, 1883 accepted as Ditylum sol (Grunow) De Toni, 1894 (synonym)
  » Species Triceratium spinosum J.W.Bailey, 1844 accepted as Biddulphia spinosa (J.W.Bailey) Boyer, 1927 (basionym)
    » Variety Triceratium spinosum var. compacta (Brightwell ex Ralfs in Pritchard) M. Peragallo, 1903 represented as Triceratium compactum Brightwell ex Ralfs in Pritchard, 1861
    » Variety Triceratium spinosum var. horrida (Brightwell) M. Peragallo, 1903 represented as Triceratium horridum Brightwell, 1856
    » Forma Triceratium spinosum f. minor (uncertain, unassessed)
      » Subforma Triceratium spinosum f. minor fossilis Grunow in Schmidt et al., 1885 (uncertain, unassessed)
    » Forma Triceratium spinosum f. quadrata Tempère & Peragallo, 1912 (uncertain, unassessed)
    » Forma Triceratium spinosum f. spinosum J.W. Bailey, 1844 (uncertain, unassessed)
    » Forma Triceratium spinosum f. tetragona Hustedt, 1930 (uncertain, unassessed)
    » Variety Triceratium spinosum var. minor (uncertain, unassessed)
    » Variety Triceratium spinosum var. ornata Grove & Sturt, 1886 (uncertain, unassessed)
    » Variety Triceratium spinosum var. quadrata Tempère & Peragallo, 1915 (uncertain, unassessed)
    » Variety Triceratium spinosum var. saxolana (Forti; Forti) (uncertain, unassessed)
    » Variety Triceratium spinosum var. tetragona Grunow in Schmidt et al., 1885 (uncertain, unassessed)
  » Species Triceratium squamatum J.Pantocsek, 1889 † accepted as Entogoniopsis squamata (J.Pantocsek) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 †
    » Variety Triceratium squamatum var. radiata J.Brun, 1896 † (uncertain)
    » Variety Triceratium squamatum var. squamatum Pantocsek, 1889 (uncertain, unassessed)
  » Species Triceratium stokesianum R.K.Greville, 1866 † accepted as Entogoniopsis stokesiana (R.K.Greville) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 † (unaccepted)
  » Species Triceratium subvenosum F. Hustedt in Wetzel, 1935 † accepted as Entogoniopsis polycistinora (Pantocsek ex Tempère) N.I.Strelnikova, P.A.Sims, J.Witkowski & D.M.Williams, 2015 † (unaccepted)
  » Species Triceratium tabellarium T.Brightwell, 1856 accepted as Entogoniopsis tabellaria (T.Brightwell) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 (unaccepted)
  » Species Triceratium tambovicum A.P.Jousé in T.F.Kozyrenko, A.P.Jousé & O.G.Kozlova, 1977 † accepted as Jouserella tambovica (A.P.Jousé in T.F.Kozyrenko et al.) T.F.Kozyrenko in T.F.Kozyrenko & N.I.Strelnikova, 2012 † (unaccepted)
  » Species Triceratium thaitiense Castracane, 1886 accepted as Triceratium tahitiense Castracane, 1886 (unaccepted, misspelling)
  » Species Triceratium tridactylum Brightwell, 1853 accepted as Triceratium spinosum J.W.Bailey, 1844 (unaccepted, synonym)
  » Species Triceratium tripartitum Grunow accepted as Biddulphia tripartita (Grunow) Van Heurck (unaccepted)
    » Variety Triceratium tripartitum var. miocenica Brun, 1896 (uncertain, unassessed)
    » Variety Triceratium tripartitum var. tripartitum Grunow in Van Heurck, 1883 (uncertain, unassessed)
  » Species Triceratium tripes J.Brun, 1896 † accepted as Trilamina tripes (J.Brun) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 † (unaccepted)
  » Species Triceratium truncatum T.Brightwell, 1856 † accepted as Entogoniopsis truncata (T.Brightwell) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 † (unaccepted)
  » Species Triceratium tschestnovii (J.Pantocsek) J.Pantocsek ex J.Tempère, 1891 † accepted as Entogoniopsis squamata (J.Pantocsek) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 † (unaccepted)
  » Species Triceratium uviferum A.W.F.Schmidt, 1885 † accepted as Entogoniopsis foveata (R.K. Greville) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 † (unaccepted)
  » Species Triceratium varians F.Hustedt in A.Schmidt et al., 1930 † accepted as Entogoniopsis varians (F.Hustedt in A.Schmidt et al.) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 † (unaccepted)
  » Species Triceratium venosum T.Brightwell, 1856 † accepted as Entogoniopsis venosa (Brightwell) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 † (unaccepted)
  » Species Triceratium weissii Grunow in A.Schmidt, 1886 † accepted as Medlinia weissei (Grunow in A.Schmidt) P.A.Sims, 1998 † (unaccepted)
  » Species Triceratium westianum Greville, 1861 † accepted as Trilamina westiana (R.K.Greville) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 † (unaccepted)
  » Species Triceratium wittianum A.Truan in A.Truan & O.N.Witt, 1888 accepted as Trilamina wittiana (A.Truan in A.Truan & O.N.Witt) J.Witkowski, P.A.Sims, N.I.Strelnikova & D.M.Williams, 2015 † (unaccepted)
  » Species Triceratium abercrombieana Greville, 1861 (unassessed)
  » Species Triceratium abyssale Castracane, 1886 (unassessed)
  » Species Triceratium acceptum Greville, 1865 (unassessed)
  » Species Triceratium aculeatum Ehrenberg, 1856 (unassessed)
  » Species Triceratium aculeatum Greville, 1861 (unassessed)
  » Species Triceratium aculeatum Schibkova in Krotov & Schibkova, 1959 (unassessed)
  » Species Triceratium acutangulum Grunow in Van Heurck, 1883 (unassessed)
  » Species Triceratium acutangulum Strelnikova, 1974 (unassessed)
    » Variety Triceratium acutangulum var. acutangulum Greville, 1864 (uncertain, unassessed)
  » Species Triceratium acutum Ehrenberg, 1844 (1845) (unassessed)
  » Species Triceratium admirabile Debes ex Hustedt in Schmidt et al., 1930 (unassessed)
  » Species Triceratium adspersum Schmidt in Schmidt et al., 1882 (unassessed)
  » Species Triceratium affine Grunow in Van Heurck, 1883 (unassessed)
  » Species Triceratium africanum Ehrenberg, 1854 (unassessed)
  » Species Triceratium agnellus Krotov in Krotov & Schibkova, 1959 (unassessed)
  » Species Triceratium alatum Arkhangelskii, 1953 (unassessed)
  » Species Triceratium albifrons Brun in Schmidt et al., 1891 (unassessed)
  » Species Triceratium album Long, Fuge & Smith, 1946 (unassessed)
  » Species Triceratium alternans sensu Schmidt in Schmidt et al., 1882 (unassessed)
  » Species Triceratium alveolatum Bergon in Bergon et al., 1890 (unassessed)
  » Species Triceratium amblyoceros sensu Brightwell, 1853 (unassessed)
    » Variety Triceratium amblyoceros var. amblyoceros Ehrenberg, 1844 (uncertain, unassessed)
  » Species Triceratium americanum Schmidt in Schmidt et al., 1882 (unassessed)
  » Species Triceratium americanum sensu Schmidt in Schmidt et al., 1882 (unassessed)
  » Species Triceratium amoenum Greville, 1861 (unassessed)
  » Species Triceratium amplexum Schmidt in Schmidt et al., 1882 (unassessed)
  » Species Triceratium ananinense Pantocsek, 1889 (unassessed)
  » Species Triceratium anastomosans Grove in Schmidt et al., 1890 (unassessed)
  » Species Triceratium anderssonii Cleve, 1881 (unassessed)
  » Species Triceratium andetiluvianum (unassessed)
    » Variety Triceratium andetiluvianum var. temperei Frenguelli, 1949 (uncertain, unassessed)
  » Species Triceratium annulatum Wallich, 1858 (unassessed)
  » Species Triceratium anostomosans Grove in A. Schmidt, 1890 (unassessed)
  » Species Triceratium antarcticum Janisch in Schmidt et al., 1882 (unassessed)
  » Species Triceratium antarcticum Cleve (unassessed)
  » Species Triceratium antediluviana (unassessed)
  » Species Triceratium antiquum Pantocsek, 1886 (unassessed)
  » Species Triceratium antiquum sensu Lefebure, 1935 (unassessed)
  » Species Triceratium appertii Kanaya, 1963 (unassessed)
  » Species Triceratium approximatum Greville, 1861 (unassessed)
  » Species Triceratium apsteinii Pantocsek, 1908 (unassessed)
  » Species Triceratium araneosum Greville, 1865 (unassessed)
  » Species Triceratium arcticum Pedicino ex Rabenhorst, 1861-1879 (unassessed)
    » Forma Triceratium arcticum f. balaeana (Ehrenberg; Ehrenberg) Hustedt, 1930 represented as Zygoceros balaena Ehrenberg, 1853
    » Forma Triceratium arcticum f. tetragona (Grunow in Cleve & Grunow) M. Peragallo, 1903 represented as Triceratium arcticum var. tetragona Grunow in Cleve & Grunow, 1880
    » Variety Triceratium arcticum var. balaena (Ehrenberg; Ehrenberg) Cleve-Euler, 1951 represented as Zygoceros balaena Ehrenberg, 1853
    » Variety Triceratium arcticum var. formosum (Brightwell) Peragallo & Peragallo, 1902 represented as Triceratium formosum f. formosum Brightwell, 1856
    » Variety Triceratium arcticum var. montereyi (Brightwell) F.W. Mills, 1935 represented as Triceratium montereyi f. montereyi Brightwell, 1853
    » Variety Triceratium arcticum var. quadrangulare (Greville) Cleve & Möller, 1878 represented as Triceratium quadrangulare Greville, 1865
    » Variety Triceratium arcticum var. quinquelobatum (Greville) Cleve & Grunow, 1880 represented as Triceratium quinquelobatum Greville, 1866
    » Forma Triceratium arcticum f. alpha Castracane, 1886 (uncertain, unassessed)
    » Forma Triceratium arcticum f. arcticum Brightwell, 1853 (uncertain, unassessed)
    » Forma Triceratium arcticum f. beta Castracane, 1866 (uncertain, unassessed)
    » Forma Triceratium arcticum f. californica Grunow in Schmidt et al., 1882 (uncertain, unassessed)
    » Forma Triceratium arcticum f. campechiana Grunow in Van Heurck, 1883 (uncertain, unassessed)
    » Forma Triceratium arcticum f. genuina Grunow in Cleve & Grunow, 1880 (uncertain, unassessed)
    » Forma Triceratium arcticum f. kerguelensis Castracane, 1886 (uncertain, unassessed)
    » Forma Triceratium arcticum f. minor Grunow in Schmidt et al., 1882 (uncertain, unassessed)
    » Forma Triceratium arcticum f. quadrangulata Tempère & Peragallo, 1909 (uncertain, unassessed)
    » Forma Triceratium arcticum f. quadrata Grunow ex Tempère & Peragallo, 1908 (uncertain, unassessed)
    » Forma Triceratium arcticum f. quinquelobata Tempère & Peragallo, 1908 (uncertain, unassessed)
    » Forma Triceratium arcticum f. tetragona Schmidt in Schmidt et al., 1885 (uncertain, unassessed)
    » Forma Triceratium arcticum f. typica Meunier, 1910 (uncertain, unassessed)
    » Variety Triceratium arcticum var. genuina Grunow in Cleve & Grunow, 1880 (uncertain, unassessed)
    » Variety Triceratium arcticum var. japonica sensu Murobuse, 1937 (uncertain, unassessed)
    » Variety Triceratium arcticum var. kerguelense Grunow in Cleve & Grunow, 1880 (uncertain, unassessed)
    » Variety Triceratium arcticum var. pentacrinum (uncertain, unassessed)
    » Variety Triceratium arcticum var. pentagonalis Tempère & Peragallo, 1910 (uncertain, unassessed)
    » Variety Triceratium arcticum var. permagna Tempère & Peragallo, 1908 (uncertain, unassessed)
    » Variety Triceratium arcticum var. quadrata Tempère & Peragallo, 1915 (uncertain, unassessed)
    » Variety Triceratium arcticum var. quadrilobatum Cleve & Möller, 1878 (uncertain, unassessed)
  » Species Triceratium arcuatum Shadbolt, 1854 (unassessed)
  » Species Triceratium areolatum Harting, 1852 (unassessed)
    » Forma Triceratium areolatum f. areolatum Greville, 1861 (uncertain, unassessed)
  » Species Triceratium argus Janisch in Schmidt et al., 1885 (unassessed)
  » Species Triceratium arietinum Schmidt in Schmidt et al., 1886 (unassessed)
  » Species Triceratium arisatum (Shadbolt) (unassessed)
  » Species Triceratium arrogans Truan y Luard & Witt, 1888 (unassessed)
  » Species Triceratium ascensionis Leuduger-Fortmorel, 1898 (unassessed)
  » Species Triceratium atlanticum Castracane, 1886 (unassessed)
  » Species Triceratium atomus Greville, 1865 (unassessed)
  » Species Triceratium attennatum (unassessed)
    » Variety Triceratium attennatum var. quadrata Tempère & Peragallo, 1912 (uncertain, unassessed)
  » Species Triceratium auliscoides Grove & Sturt, 1887 (unassessed)
  » Species Triceratium barbadense Greville, 1861 (unassessed)
  » Species Triceratium barbadense sensu Grove & Sturt, 1887 (unassessed)
  » Species Triceratium barkerii Desikachary & Sreelatha, 1989 (unassessed)
  » Species Triceratium basilica Brun in Schmidt et al., 1892 (unassessed)
  » Species Triceratium bellum Long, Fuge & Smith, 1946 (unassessed)
  » Species Triceratium bergonii Tempère & Brun, 1889 † (unassessed)
  » Species Triceratium besseyi Pantocsek, 1908 (unassessed)
  » Species Triceratium bicorne Cleve, 1878 † accepted as Pseudictyota bicorne (Cleve) P.A. Sims & D. M. Williams in Sims et al., 2018 † (unassessed)
  » Species Triceratium bicornigerum Hanna, 1927 (unassessed)
  » Species Triceratium biddulphia Heiberg, 1863 (unassessed)
  » Species Triceratium biforme Hustedt in Schmidt et al., 1959 (unassessed)
  » Species Triceratium biharense Pantocsek, 1892 (unassessed)
  » Species Triceratium bimarginatum Grove & Sturt, 1887 (unassessed)
  » Species Triceratium biquadratum Janisch, 1886 (unassessed)
  » Species Triceratium bireticulatum Barker & Meakin, 1945 (unassessed)
  » Species Triceratium blanditum Greville, 1861 (unassessed)
  » Species Triceratium blandum O. Witt in A. Schmidt, 1886 (unassessed)
  » Species Triceratium boryanum Pantocsek, 1889 (unassessed)
  » Species Triceratium bowerbankiana Ralfs in Pritchard, 1861 (unassessed)
  » Species Triceratium brachiolatum Brightwell, 1853 (unassessed)
  » Species Triceratium brandtii Pantocsek, 1892 (unassessed)
  » Species Triceratium brevinervum Greville, 1865 (unassessed)
  » Species Triceratium broeckii Leuduger-Fortmorel, 1879 (unassessed)
  » Species Triceratium brookei Schmidt in Schmidt et al., 1885 (unassessed)
  » Species Triceratium browneanum Greville, 1861 (unassessed)
  » Species Triceratium brunii Pantocsek, 1886 (unassessed)
  » Species Triceratium bullatum Grove in Bergon et al., 1890 (unassessed)
  » Species Triceratium bullosum Witt, 1873 (unassessed)
  » Species Triceratium caducum Pantocsek, 1892 (unassessed)
  » Species Triceratium caelatum Janisch, 1885 (unassessed)
  » Species Triceratium caelatum sensu Grove & Sturt, 1886 (unassessed)
  » Species Triceratium californicum Grunow in Van Heurck, 1883 (unassessed)
  » Species Triceratium calvescens Castracane, 1886 (unassessed)
  » Species Triceratium cambroneroi Azpeitia, 1911 (unassessed)
  » Species Triceratium campechianum Grunow in Cleve, 1878 (unassessed)
  » Species Triceratium canalifer Brun, 1891 (unassessed)
  » Species Triceratium cancellatum sensu Moller, 1892 (unassessed)
  » Species Triceratium cancellatum sensu Grove & Sturt, 1886 (unassessed)
  » Species Triceratium capitatum J.Ralfs ex Greville (unassessed)
  » Species Triceratium capitiferum Hustedt in Schmidt et al., 1959 (unassessed)
  » Species Triceratium carbonarium Ehrenberg in Roth, 1854 (unassessed)
  » Species Triceratium caribaeum Walker & Chase in Chase & Walker, 1887 (unassessed)
  » Species Triceratium carinatum Ehrenberg, 1855 (unassessed)
  » Species Triceratium cariosum Castracane, 1886 (unassessed)
  » Species Triceratium castelliferum Grunow, 1888 (unassessed)
  » Species Triceratium castracanei Pantocsek, 1886 (unassessed)
  » Species Triceratium caudatum Witt, 1885 (unassessed)
  » Species Triceratium celebense Schmidt in Schmidt et al., 1882 (unassessed)
  » Species Triceratium chenevieri Meister, 1937 (unassessed)
  » Species Triceratium circumvallatum Hustedt in Schmidt et al., 1959 (unassessed)
  » Species Triceratium clavatum Grove in Schmidt et al., 1896 (unassessed)
  » Species Triceratium coelatum Janisch ex Proschkina-Lavrenko, 1949 (unassessed)
  » Species Triceratium coerulescens Pantocsek, 1892 (unassessed)
  » Species Triceratium compactum Brightwell ex Ralfs in Pritchard, 1861 (unassessed)
  » Species Triceratium compar Schmidt in Schmidt et al., 1885 (unassessed)
  » Species Triceratium comtum Ehrenberg, 1843 (unassessed)
  » Species Triceratium concavum Harvey & J.W. Bailey, 1853 (1854) (unassessed)
  » Species Triceratium concinnum Greville, 1864 (unassessed)
  » Species Triceratium condecorum Schmidt in Schmidt et al., 1882 (unassessed)
  » Species Triceratium coniferum sensu Tempère & Peragallo, 1889-1895 (unassessed)
  » Species Triceratium coniferum Brightwell, 1856 (unassessed)
  » Species Triceratium consimile Grunow in Van Heurck, 1883 (unassessed)
  » Species Triceratium constans Greville, 1863 (unassessed)
  » Species Triceratium constellatum Tempère & Brun in Brun & Tempère, 1889 (unassessed)
  » Species Triceratium contumax (Mann) (unassessed)
  » Species Triceratium conturianum Tempere & Brun in Tempere & Peragallo, 1915 (unassessed)
  » Species Triceratium convexiusculum Grunow in Schmidt et al., 1890 (unassessed)
  » Species Triceratium convexum Greville, 1862 (unassessed)
  » Species Triceratium cordiferum Grove & Sturt, 1887 (unassessed)
  » Species Triceratium coronatum Castracane, 1886 (unassessed)
  » Species Triceratium coronatum Leuduger-Fortmorel, 1898 (unassessed)
  » Species Triceratium couturianum Tempère & Brun in Tempère, 1890 (unassessed)
  » Species Triceratium crassum Shadbolt, 1854 (unassessed)
  » Species Triceratium crebrestriatum Grove in Bergon et al., 1890 (unassessed)
  » Species Triceratium crenatum Kitton ex Ralfs in Pritchard, 1861 (unassessed)
  » Species Triceratium crispulum Hustedt in Schmidt et al., 1959 (unassessed)
  » Species Triceratium cristatum Pantocsek, 1892 (unassessed)
  » Species Triceratium crouanii M. Peragallo in Tempère & Peragallo, 1910 (unassessed)
  » Species Triceratium cruciforme Schmidt in Schmidt et al., 1882 (unassessed)
  » Species Triceratium crux T.Brightwell (unassessed)
  » Species Triceratium cultum Schmidt in Schmidt et al., 1891 (unassessed)
  » Species Triceratium cuneatum Schmidt, 1888 (unassessed)
  » Species Triceratium curvatovittatum Schmidt in Schmidt et al., 1886 (unassessed)
  » Species Triceratium curvibaccatum Brun, 1894 (unassessed)
  » Species Triceratium cuspidatum Janisch in Schmidt et al., 1885 (unassessed)
  » Species Triceratium cyclamen Brun in Schmidt et al., 1891 (unassessed)
  » Species Triceratium davidsonianum Truan y Luard & Witt, 1888 (unassessed)
  » Species Triceratium davyanum Greville, 1862 (unassessed)
  » Species Triceratium debesii Pantocsek, 1889 (unassessed)
  » Species Triceratium debyi Leuduger-Fortmorel, 1898 (unassessed)
  » Species Triceratium decorum Greville, 1862 (unassessed)
  » Species Triceratium deductum Pantocsek, 1892 (unassessed)
  » Species Triceratium definitum Greville, 1864 (unassessed)
  » Species Triceratium deformatum Pantocsek, 1889 (unassessed)
  » Species Triceratium delectabile Pantocsek, 1892 (unassessed)
  » Species Triceratium delicatulum Greville, 1861 (unassessed)
  » Species Triceratium demissum Hustedt in Schmidt et al., 1959 (unassessed)
  » Species Triceratium detonii Pantocsek, 1892 (unassessed)
  » Species Triceratium dictyotum P.A. Sims & R. Ross, 1990 (unassessed)
  » Species Triceratium digitale Brun, 1896 (unassessed)
  » Species Triceratium dignum Long, Fuge & Smith, 1946 (unassessed)
  » Species Triceratium disciforme Greville, 1863 (unassessed)
  » Species Triceratium dissimile Grunow in Schmidt et al., 1885 (unassessed)
  » Species Triceratium distictum J.W.Barker & S.H.Meakin, 1949 (unassessed)
  » Species Triceratium distinguendum Pantocsek, 1892 (unassessed)
  » Species Triceratium diversum Hanna & Brigger, 1964 (unassessed)
  » Species Triceratium divisum Grunow in Van Heurck, 1883 (unassessed)
  » Species Triceratium duplicatum Schmidt in Schmidt et al., 1882 (unassessed)
  » Species Triceratium eccentricum Grove & Sturt, 1887 (unassessed)
  » Species Triceratium edgari Hajós, 1974 (unassessed)
  » Species Triceratium ehrenbergii Grunow in Van Heurck, 1883 (unassessed)
  » Species Triceratium elaboratum Truan y Luard & Witt, 1888 (unassessed)
  » Species Triceratium elatum Pantocsek, 1892 (unassessed)
  » Species Triceratium elegans A.M. Edwards in Stodder, 1861 (unassessed)
  » Species Triceratium elevatum Pantocsek, 1889 (unassessed)
  » Species Triceratium elongatum Grunow, 1867 (unassessed)
  » Species Triceratium endlicherii Pantocsek, 1892 (unassessed)
  » Species Triceratium epitheliale Witt in Schmidt et al., 1886 (unassessed)
  » Species Triceratium excentricum Grove & Sturt, 1887 (unassessed)
  » Species Triceratium exiguum W.Smith, 1856 (unassessed)
  » Species Triceratium expressium Janisch in Schmidt et al., 1886 (unassessed)
  » Species Triceratium extuberans O'Meara, 1869 (unassessed)
  » Species Triceratium fabelliferum Barker & Meakin, 1945 (unassessed)
  » Species Triceratium fallaciosum Grunow, 1889 (unassessed)
  » Species Triceratium fasciatum Pantocsek, 1889 (unassessed)
  » Species Triceratium febigeri W.C.Walker (unassessed)
  » Species Triceratium fenestratum Witt, 1885 (unassessed)
  » Species Triceratium ferox Schmidt in Schmidt et al., 1886 (unassessed)
  » Species Triceratium ferox Castracane, 1886 (unassessed)
  » Species Triceratium fimbriatum Wallich, 1858 (unassessed)
  » Species Triceratium finnmarchicum Grunow in Cleve & Grunow, 1880 (unassessed)
  » Species Triceratium firmum Greville, 1864 (unassessed)
  » Species Triceratium firthii Hanna & Brigger, 1964 (unassessed)
  » Species Triceratium fischeri Schmidt in Schmidt et al., 1882 (unassessed)
  » Species Triceratium flabelliferum Barker & Meakin, 1945 (unassessed)
  » Species Triceratium flexuosa (unassessed)
    » Variety Triceratium flexuosa var. setigera Castracane, 1871 (uncertain, unassessed)
  » Species Triceratium flexuosum Greville, 1862 (unassessed)
  » Species Triceratium formosum Schmidt in Schmidt et al., 1882 (unassessed)
  » Species Triceratium forresterii Tempère in Bergon et al., 1890 (unassessed)
  » Species Triceratium foseinoides Christian?, 1888 (unassessed)
  » Species Triceratium fractum Walker & Chase in Chase & Walker, 1887 (unassessed)
  » Species Triceratium fragile Pantocsek, 1892 (unassessed)
  » Species Triceratium frauenfeldii Grunow in Van Heurck, 1883 (unassessed)
  » Species Triceratium gallapagense Cleve, 1881 (unassessed)
  » Species Triceratium geminum Schmidt in Schmidt et al., 1882 (unassessed)
  » Species Triceratium giennense Azpeitia, 1911 (unassessed)
  » Species Triceratium glandarium Schmidt in Schmidt et al., 1888 (unassessed)
  » Species Triceratium glandiferum Grunow, 1888 (unassessed)
  » Species Triceratium godeffroyi sensu Truan & Witt, 1888 (unassessed)
  » Species Triceratium gombosii Fenner, 1991 (unassessed)
  » Species Triceratium gracile Hustedt in Schmidt et al., 1930 (unassessed)
  » Species Triceratium gracillimum Hustedt in Schmidt et al., 1959 (unassessed)
  » Species Triceratium grande sensu Schmidt in Schmidt et al., 1885 (unassessed)
  » Species Triceratium grande sensu Truan & Witt, 1888 (unassessed)
  » Species Triceratium granulatum Walker & Chase in Chase & Walker, 1887 (unassessed)
  » Species Triceratium gratiosum Greville, 1861 (unassessed)
  » Species Triceratium gratum Schmidt in Schmidt et al., 1882 (unassessed)
  » Species Triceratium grayii Grove & Sturt ex Grunow, 1889 (unassessed)
  » Species Triceratium groningensis Reinhold, 1937 (unassessed)
    » Forma Triceratium groningensis f. quadrata Gombos & Ciesielski, 1983 (uncertain, unassessed)
  » Species Triceratium grundleri Schmidt in Schmidt et al., 1882 (unassessed)
  » Species Triceratium grundleri Schmidt in Schmidt et al., 1885 (unassessed)
  » Species Triceratium grunowianum Castracane, 1886 (unassessed)
  » Species Triceratium grunowii Janisch, 1885 (unassessed)
  » Species Triceratium guinense Leuduger-Fortmorel, 1898 (unassessed)
  » Species Triceratium gurowii Pantocsek, 1892 (unassessed)
  » Species Triceratium haitianum Hustedt in Schmidt et al., 1959 (unassessed)
  » Species Triceratium heibergianum Grunow, 1866 (unassessed)
  » Species Triceratium heilprinianum Kain & Schultze, 1889 (unassessed)
  » Species Triceratium heliaudi Tempere ex Peragallo & Peragallo, 1902 (unassessed)
  » Species Triceratium hertleini Hanna, 1927 (unassessed)
  » Species Triceratium heterogonium Barker & Meakin, 1946 (unassessed)
  » Species Triceratium heteroporum Grunow in Van Heurck, 1883 (unassessed)
  » Species Triceratium heterostictum Schmidt in Schmidt et al., 1890 (unassessed)
  » Species Triceratium hilaratum Pantocsek, 1892 (unassessed)
  » Species Triceratium hirsutum (unassessed)
  » Species Triceratium horridum Brightwell, 1856 (unassessed)
    » Forma Triceratium horridum f. horridum Pantocsek, 1889 (uncertain, unassessed)
  » Species Triceratium hungaricum Pantocsek, 1892 (unassessed)
  » Species Triceratium hyalinum Brightwell, 1858 (unassessed)
  » Species Triceratium hystrix Pantocsek, 1889 (unassessed)
  » Species Triceratium idoneum Pantocsek, 1889 (unassessed)
  » Species Triceratium illustrum Pantocsek, 1892 (unassessed)
  » Species Triceratium impar Schmidt in Schmidt et al., 1890 (unassessed)
  » Species Triceratium imperator Truan y Luard & Witt, 1888 (unassessed)
  » Species Triceratium imperiale (Walker in Walker & Chase) M. Peragallo, 1897 (unassessed)
  » Species Triceratium implicatum Greville, 1865 (unassessed)
  » Species Triceratium impressum Grunow, 1883 (unassessed)
  » Species Triceratium inaequale Greville, 1864 (unassessed)
  » Species Triceratium incrassatum F.S.Castracane degli Antelminelli (unassessed)
  » Species Triceratium indentatum Kain & Schultze, 1889 (unassessed)
  » Species Triceratium inglorium Greville, 1865 (unassessed)
  » Species Triceratium inopinata Greville, 1861 (unassessed)
  » Species Triceratium insutum Castracane, 1886 (unassessed)
  » Species Triceratium intermedium Grove & Sturt, 1887 (unassessed)
  » Species Triceratium interpunctatum Grunow in Schmidt et al., 1882 (unassessed)
  » Species Triceratium interruptum Bailey Collection (unassessed)
  » Species Triceratium intricatum T.West, 1860 (unassessed)
  » Species Triceratium ischaboense Hustedt, 1930 (unassessed)
  » Species Triceratium janischii Truan y Luard & Witt, 1888 (unassessed)
  » Species Triceratium japonicum Schmidt in Schmidt et al., 1885 (unassessed)
  » Species Triceratium javanicum Cleve, 1881 (unassessed)
  » Species Triceratium jensenianum Grunow, 1866 (unassessed)
  » Species Triceratium jeremianum Schmidt in Schmidt et al., 1882 (unassessed)
  » Species Triceratium jimboi Pantocsek, 1892 (unassessed)
  » Species Triceratium johnsoni Ralfs in Pritchard, 1861 (unassessed)
  » Species Triceratium jordani Truan y Luard & Witt, 1888 (unassessed)
  » Species Triceratium jucatense Grunow in Schmidt et al., 1882 (unassessed)
  » Species Triceratium jucundum Pantocsek, 1892 (unassessed)
  » Species Triceratium kennetti Hajós & Stradner in Hajós, 1974 (unassessed)
  » Species Triceratium kidstonii Pantocsek, 1889 (unassessed)
  » Species Triceratium kinkeri Schmidt in Schmidt et al., 1886 (unassessed)
  » Species Triceratium kinkerianum Witt, 1885 (unassessed)
  » Species Triceratium kinkerianum J.-J.Brun (unassessed)
  » Species Triceratium kinkerianum Grove & Sturt, 1886 (unassessed)
  » Species Triceratium kittonianum Greville, 1865 (unassessed)
  » Species Triceratium kuepperi Hajós & Stradner in Hajós, 1974 (unassessed)
  » Species Triceratium kusnetzkianum Pantocsek, 1889 (unassessed)
  » Species Triceratium labyrinthaeum Greville, 1861 (unassessed)
  » Species Triceratium laetum Pantocsek, 1886 (unassessed)
    » Forma Triceratium laetum f. doljense Jurilj, 1957 (uncertain, unassessed)
  » Species Triceratium laevepunctatum Witt, 1873 (unassessed)
  » Species Triceratium lanceolatum Pantocsek, 1889 (unassessed)
  » Species Triceratium latipes Fenner in Schrader & Fenner, 1976 (unassessed)
  » Species Triceratium latum sensu Pantocsek, 1886 (unassessed)
  » Species Triceratium lautourianum Grove in Bergon et al., 1890 (unassessed)
  » Species Triceratium lautum Greville, 1866 (unassessed)
  » Species Triceratium leudugeri (unassessed)
  » Species Triceratium leudugerii (unassessed)
    » Variety Triceratium leudugerii var. samoensis Peragallo & Peragallo, 1911 (uncertain, unassessed)
  » Species Triceratium levis (unassessed)
  » Species Triceratium ligulatum Greville, 1864 (unassessed)
  » Species Triceratium lingulatum Greville, 1864 (unassessed)
  » Species Triceratium loczyi (unassessed)
    » Variety Triceratium loczyi var. confluens Pantocsek, 1889 (uncertain, unassessed)
    » Variety Triceratium loczyi var. loczyi Pantocsek, 1889 (uncertain, unassessed)
  » Species Triceratium lucidum Pantocsek, 1886 (unassessed)
  » Species Triceratium luculentum Hustedt in Schmidt et al., 1959 (unassessed)
  » Species Triceratium luminosum Tempère & Brun in Brun & Tempère, 1889 (unassessed)
  » Species Triceratium lunatum Long, Fuge & Smith, 1946 (unassessed)
  » Species Triceratium lustratum Long, Fuge & Smith, 1946 (unassessed)
  » Species Triceratium macroporum Hajós, 1968 (unassessed)
  » Species Triceratium maculatum Kitton, 1871 (unassessed)
  » Species Triceratium madagascarense Grunow in Van Heurck, 1883 (unassessed)
  » Species Triceratium mamillanum Debes ex Hustedt in Schmidt et al., 1959 (unassessed)
  » Species Triceratium mammosum Greville, 1866 (unassessed)
  » Species Triceratium margaritaceum Ralfs in Pritchard, 1861 (unassessed)
  » Species Triceratium margaritiferum Cleve, 1881 (unassessed)
  » Species Triceratium marginatum Brightwell, 1856 (unassessed)
  » Species Triceratium marylandicum Brightwell, 1856 (unassessed)
  » Species Triceratium mediterraneum Pantocsek, 1908 (unassessed)
  » Species Triceratium megastomum sensu Brightwell, 1853 (unassessed)
  » Species Triceratium membranaceum Brightwell, 1853 (unassessed)
  » Species Triceratium membranaceum (Cleve) (unassessed)
  » Species Triceratium mereskovskii Pantocsek, 1889 (unassessed)
  » Species Triceratium mesoleium Grunow in Van Heurck, 1883 (unassessed)
  » Species Triceratium microcephalum Greville, 1861 (unassessed)
  » Species Triceratium microporum Ehrenberg, 1875 (unassessed)
  » Species Triceratium microstictum Greville, 1864 (unassessed)
  » Species Triceratium microtis (unassessed)
    » Forma Triceratium microtis f. microtis Pantocsek, 1886 (uncertain, unassessed)
    » Forma Triceratium microtis f. quadriocellata Pantocsek, 1886 (uncertain, unassessed)
  » Species Triceratium minusculum Grunow in Cleve & Möller, 1879 (unassessed)
  » Species Triceratium minutum Walker & Chase in Chase & Walker, 1887 (unassessed)
  » Species Triceratium mirabile Jouse in Proschkina-Lavrenko, 1949 (unassessed)
  » Species Triceratium mirificum Brun, 1896 (unassessed)
  » Species Triceratium modestum Greville, 1862 (unassessed)
  » Species Triceratium moelleri Pantocsek, 1886 (unassessed)
  » Species Triceratium montereyi (unassessed)
    » Forma Triceratium montereyi f. montereyi Brightwell, 1853 (uncertain, unassessed)
    » Forma Triceratium montereyi f. trigona Tempère & Peragalllo, 1909 (uncertain, unassessed)
  » Species Triceratium morenoense Barker & Meakin, 1949 (unassessed)
  » Species Triceratium morsianum Tempere ex F. W. Mills, 1935 (unassessed)
  » Species Triceratium mucronatum Schmidt in Schmidt et al., 1886 (unassessed)
  » Species Triceratium nebulosum Greville, 1861 (unassessed)
  » Species Triceratium nebulosum Ehrenberg, 1872 (unassessed)
  » Species Triceratium needhami Hanna & Brigger, 1964 (unassessed)
  » Species Triceratium neglectum Greville, 1865 (unassessed)
  » Species Triceratium nervosum Pavillard, 1930 (unassessed)
  » Species Triceratium nicobaricum Grunow in Schmidt et al., 1882 (unassessed)
  » Species Triceratium nitidum Greville, 1861 (unassessed)
  » Species Triceratium nobile Witt, 1885 (unassessed)
  » Species Triceratium notabilis Greville, 1861 (unassessed)
  » Species Triceratium notabilis Korotkevicz, 1964 (unassessed)
  » Species Triceratium notatum Pantocsek, 1892 (unassessed)
  » Species Triceratium nudum Pantocsek, 1886 (unassessed)
  » Species Triceratium obliquum Grunow in Van Heurck, 1883 (unassessed)
  » Species Triceratium obtusangulum Hustedt in Schmidt et al., 1959 (unassessed)
  » Species Triceratium obtusum Ehrenberg, 1844 (unassessed)
  » Species Triceratium obtusum K.G.Shibkova, 1959 (unassessed)
    » Forma Triceratium obtusum f. minor Schmidt in Schmidt et al., 1882 (uncertain, unassessed)
    » Forma Triceratium obtusum f. obtusum Ehrenberg, 1844 (uncertain, unassessed)
  » Species Triceratium obtusum sensu Brightwell, 1853 (unassessed)
  » Species Triceratium occultum Hustedt in Schmidt et al., 1930 (unassessed)
  » Species Triceratium ocellatum Ehrenberg, 1845 (unassessed)
  » Species Triceratium officiosum Hustedt in Schmidt et al., 1959 (unassessed)
  » Species Triceratium orbiculatum Schibkova in Krotov & Schibkova, 1959 (unassessed)
    » Variety Triceratium orbiculatum var. crenulata (Grunow in Schmidt et al.) (uncertain, unassessed)
    » Variety Triceratium orbiculatum var. elongatum (Grunow) Grunow, 1877 (uncertain, unassessed)
    » Variety Triceratium orbiculatum var. exisa Grunow in Schmidt et al., 1882 (uncertain, unassessed)
    » Variety Triceratium orbiculatum var. orbiculatum Shadbolt, 1854 (uncertain, unassessed)
  » Species Triceratium orbiculatum sensu Brightwell, 1856 (unassessed)
  » Species Triceratium orientale Harvey & Bailey, 1853 (unassessed)
  » Species Triceratium papillatum Kitton in A. Schmist, 1891 (unassessed)
  » Species Triceratium parallum Christian?, 1888 (unassessed)
  » Species Triceratium pardus Schmidt in Schmidt et al., 1882 (unassessed)
  » Species Triceratium parma J.W. Bailey ex H.L. Smith, 1872 (unassessed)
  » Species Triceratium parmula Brightwell, 1856 (unassessed)
  » Species Triceratium partitum Greville, 1864 (unassessed)
  » Species Triceratium parvulum (Janisch & Rabenhorst) (unassessed)
  » Species Triceratium patagonicum A.Schmidt, 1885 (unassessed)
  » Species Triceratium pauperculum Greville, 1865 (unassessed)
  » Species Triceratium pavimentosum Castracane, 1886 (unassessed)
  » Species Triceratium pectinatum Greville, 1862 (unassessed)
  » Species Triceratium peragallii (unassessed)
    » Forma Triceratium peragallii f. peragallii Brun in Schmidt et al., 1891 (uncertain, unassessed)
    » Forma Triceratium peragallii f. typica Brun in Schmidt et al., 1891 (uncertain, unassessed)
  » Species Triceratium peragalloii Pantocsek, 1889 (unassessed)
  » Species Triceratium permagnum Janisch, 1888 (unassessed)
  » Species Triceratium perminutum Greville, 1864 (unassessed)
  » Species Triceratium perpendiculare Lin & Chin, 1980 (unassessed)
  » Species Triceratium perplexum Long, Fuge & Smith, 1946 (unassessed)
  » Species Triceratium perpusillium Greville, 1864 (unassessed)
  » Species Triceratium perryanum Truan y Luard & Witt, 1888 (unassessed)
  » Species Triceratium pethoei Pantocsek, 1889 (unassessed)
  » Species Triceratium petitianum Leuduger-Fortmorel, 1898 (unassessed)
  » Species Triceratium petitii Pantocsek, 1889 (unassessed)
  » Species Triceratium pileatum Grunow in Van Heurck, 1883 (unassessed)
  » Species Triceratium planoconcavum (unassessed)
  » Species Triceratium planum Strelnikova, 1974 (unassessed)
  » Species Triceratium plenum Grove & Sturt in Grunow, 1889 (unassessed)
  » Species Triceratium plumosum Greville, 1864 (unassessed)
  » Species Triceratium polycystinorum sensu Krotov & Schibkova, 1959 (unassessed)
  » Species Triceratium polygibbum Pantocsek, 1886 (unassessed)
  » Species Triceratium polygonium Greville, 1865 (unassessed)
  » Species Triceratium polymorphus Harwood & Maruyama, 1992 (unassessed)
  » Species Triceratium ponderosum Edwards, 1873 (unassessed)
  » Species Triceratium portuosum Janisch in Schmidt et al., 1885 (unassessed)
  » Species Triceratium praeferox Pantocsek, 1892 (unassessed)
  » Species Triceratium praeturgidum Schibkova in Krotov & Schibkova, 1959 (unassessed)
  » Species Triceratium productissimum Bergon ex Bergon et al., 1890 (unassessed)
  » Species Triceratium prominens Greville, 1863 (unassessed)
  » Species Triceratium proprium Pantocsek, 1892 (unassessed)
  » Species Triceratium protractum Pantocsek, 1889 (unassessed)
  » Species Triceratium pruninosum Long, Fuge & Smith, 1946 (unassessed)
  » Species Triceratium pseudoarcticum Pantocsek, 1892 (unassessed)
  » Species Triceratium pseudotrisulcatum Hustedt, 1935 (unassessed)
  » Species Triceratium pulchellum Grunow (unassessed)
  » Species Triceratium pulcherrimum Greville, 1861 (unassessed)
  » Species Triceratium pulchrum Hustedt in Schmidt et al., 1959 (unassessed)
  » Species Triceratium pulvillus Castracane, 1886 (unassessed)
  » Species Triceratium pulvinar Schmidt in Schmidt et al., 1888 (unassessed)
  » Species Triceratium punctatolineatum Schmidt in Schmidt et al., 1890 (unassessed)
  » Species Triceratium punctatum Wallich, 1860 (unassessed)
  » Species Triceratium punctatum (Greville) (unassessed)
  » Species Triceratium punctigerum Castracane, 1886 (unassessed)
  » Species Triceratium punctulata Tempère & Peragallo, 1908 (unassessed)
  » Species Triceratium quadrangulare Greville, 1865 (unassessed)
    » Variety Triceratium quadrangulare var. pentagona Grunow, 1868 (uncertain, unassessed)
  » Species Triceratium quadricorne Greville, 1865 (unassessed)
  » Species Triceratium quadrinotatum Schmidt in Schmidt et al., 1890 accepted as Amphitetras quadrinotatum (Ehrenberg, Schmidt) Prema, P. & T. V. Desikachary, 2012 † (unassessed)
  » Species Triceratium quinquefolium Leuduger-Fortmorel, 1898 (unassessed)
  » Species Triceratium quinqueguttatum Grunow in Van Heurck, 1883 (unassessed)
  » Species Triceratium quinquelobatum Greville, 1866 (unassessed)
  » Species Triceratium radiatopunctatum (unassessed)
  » Species Triceratium radiolatum Janisch in Schmidt et al., 1890 (unassessed)
  » Species Triceratium radiosoreticulatum Grunow in Van Heurck, 1883 (unassessed)
  » Species Triceratium rattrayii Pantocsek, 1889 (unassessed)
  » Species Triceratium receptum Schmidt in Schmidt et al., 1885 (unassessed)
  » Species Triceratium rectangulare Grove & Sturt, 1887 (unassessed)
  » Species Triceratium regina Wolle, 1890 (unassessed)
  » Species Triceratium regina Ehrenberg ex M. Peragallo, 1903 (unassessed)
  » Species Triceratium renunciatum Pantocsek, 1889 (unassessed)
  » Species Triceratium reticulatum Greville, 1865 (unassessed)
  » Species Triceratium reticulum Weisse, 1854 (unassessed)
  » Species Triceratium rivale Schmidt in Schmidt et al., 1885 (unassessed)
  » Species Triceratium robertsiana (unassessed)
    » Variety Triceratium robertsiana var. manorense Salim-Iqbal, 1964 (uncertain, unassessed)
  » Species Triceratium robertsianum Stokes ex O'Meara, 1869 (unassessed)
  » Species Triceratium robertsianum Greville (unassessed)
    » Forma Triceratium robertsianum f. inermis Schmidt in Schmidt et al., 1885 (uncertain, unassessed)
    » Forma Triceratium robertsianum f. quadrata Hustedt, 1930 (uncertain, unassessed)
    » Forma Triceratium robertsianum f. robertsianum Greville, 1863 (uncertain, unassessed)
    » Variety Triceratium robertsianum var. dwarkensum Misra, 1956 (uncertain, unassessed)
    » Variety Triceratium robertsianum var. inermis Tempère & Peragallo, 1913 (uncertain, unassessed)
    » Variety Triceratium robertsianum var. macracantha Grunow in Schmidt et al., 1885 (uncertain, unassessed)
  » Species Triceratium robustum Greville, 1861 (unassessed)
  » Species Triceratium rogosum Grove & Sturt, 1887 (unassessed)
  » Species Triceratium roperianum Greville, 1862 (unassessed)
  » Species Triceratium rostratum Petit, 1881 (unassessed)
  » Species Triceratium rotifer Leuduger-Fortmorel, 1879 (unassessed)
  » Species Triceratium rotundatum R.K.Greville, 1861 †
  » Species Triceratium russlandicum Tempère, 1890 (unassessed)
  » Species Triceratium rylandsianum Greville, 1864 (unassessed)
  » Species Triceratium rzehakii Pantocsek, 1889 (unassessed)
  » Species Triceratium saliens (unassessed)
  » Species Triceratium sanctaehelenae Heiden & Kolbe, 1928 (unassessed)
  » Species Triceratium sarcophagus Castracane, 1886 (unassessed)
  » Species Triceratium sarmaticum Pantocsek, 1889 (unassessed)
  » Species Triceratium schlumbergeri Tempère & Brun in Brun & Tempère, 1889 (unassessed)
  » Species Triceratium schmidtii Anissimova ex Proschkina-Lavrenko, 1949 (unassessed)
  » Species Triceratium schulzii Jousé, 1949 (unassessed)
    » Variety Triceratium schulzii var. quadriloba Fenner, 1978 (uncertain, unassessed)
  » Species Triceratium scitulum sensu Schmidt in Schmidt et al., 1885 (unassessed)
  » Species Triceratium scopus Brun, 1896 (unassessed)
  » Species Triceratium scutum M. Peragallo, 1903 (unassessed)
  » Species Triceratium secedens Schmidt in Schmidt et al., 1888 (unassessed)
    » Variety Triceratium secedens var. quadrata Forti in Tempère & Peragallo, 1909 (uncertain, unassessed)
    » Variety Triceratium secedens var. secedens sensu Forti, 1910 (uncertain, unassessed)
  » Species Triceratium secernendum Schmidt in Schmidt et al., 1882 (unassessed)
  » Species Triceratium semseyi Pantocsek, 1889 (unassessed)
  » Species Triceratium separatum Schmidt in Schmidt et al., 1882 (unassessed)
  » Species Triceratium septum Pantocsek, 1889 (unassessed)
  » Species Triceratium serratum Wallich, 1858 (unassessed)
  » Species Triceratium setigerum J.W.Bailey, 1854 (unassessed)
  » Species Triceratium sexangulatum Greville, 1865 (unassessed)
  » Species Triceratium sexpartitum Grove & Sturt, 1887 (unassessed)
  » Species Triceratium seychellense sensu Forti, 1910 (unassessed)
  » Species Triceratium seychellense Grunow in Van Heurck, 1883 (unassessed)
  » Species Triceratium shadbodtianum (unassessed)
  » Species Triceratium shadboltii L.W. Bailey, 1861 (unassessed)
  » Species Triceratium sibiricum Jousé, 1955 (unassessed)
  » Species Triceratium sidereum Schmidt in Schmidt et al., 1890 (unassessed)
  » Species Triceratium simile Hustedt in Schmidt et al., 1959 (unassessed)
  » Species Triceratium simplex Brun in Brun & Tempère, 1889 (unassessed)
  » Species Triceratium simplicissimum Witt, 1885 (unassessed)
  » Species Triceratium sinense Schwarz, 1874 (unassessed)
    » Variety Triceratium sinense var. enerve Schwarz, 1874 (uncertain, unassessed)
  » Species Triceratium smithianum Greville, 1864 (unassessed)
  » Species Triceratium smithii Pantocsek, 1889 (unassessed)
  » Species Triceratium sokolowii Pantocsek, 1892 (unassessed)
  » Species Triceratium sol A. Schmidt, 1890 (unassessed)
  » Species Triceratium sol Cleve & Möller, 1878 (unassessed)
  » Species Triceratium sollemne Jousé, 1955 (unassessed)
  » Species Triceratium sparsimpunctata Jousé in Proschkina-Lavrenko, 1949 (unassessed)
  » Species Triceratium sparsipunctatum Hustedt in Schmidt et al., 1959 (unassessed)
  » Species Triceratium speciosum Pantocsek, 1892 (unassessed)
  » Species Triceratium spectabile Weisse, 1867 (unassessed)
  » Species Triceratium spinulosum Grunow in Schmidt et al., 1885 (unassessed)
  » Species Triceratium splendidum Hustedt in Schmidt et al., 1959 (unassessed)
  » Species Triceratium squamiferum Pantocsek ex Tempère, 1891 (unassessed)
  » Species Triceratium st. helenae (unassessed)
  » Species Triceratium staubii Pantocsek, 1892 (unassessed)
  » Species Triceratium stellatum Meister, 1934 (1935) (unassessed)
  » Species Triceratium stigmaticum Pantocsek, 1892 (unassessed)
  » Species Triceratium stolterfothii Truan y Luard & Witt, 1888 (unassessed)
  » Species Triceratium strabo Schmidt in Schmidt et al., 1885 (unassessed)
  » Species Triceratium striolatum Ehrenberg, 1840 (unassessed)
  » Species Triceratium striolatum W. Smith, 1853 (unassessed)
  » Species Triceratium striolatum sensu Brightwell, 1853 (unassessed)
  » Species Triceratium striolatum sensu Roper, 1854 (unassessed)
  » Species Triceratium sturtii Pantocsek, 1886 (unassessed)
  » Species Triceratium subcapitatum Pantocsek, 1889 (unassessed)
    » Variety Triceratium subcapitatum var. baccata J. Brun, 1896 (uncertain, unassessed)
    » Variety Triceratium subcapitatum var. russica Pantocsek, 1889 (uncertain, unassessed)
    » Variety Triceratium subcapitatum var. spinosa Forti, 1913 (uncertain, unassessed)
    » Variety Triceratium subcapitatum var. subcapitatum Greville, 1863 (uncertain, unassessed)
  » Species Triceratium subcornutum Grunow in Schmidt et al., 1886 (unassessed)
  » Species Triceratium sublime Schmidt in Schmidt et al., 1886 (unassessed)
  » Species Triceratium subofficiosum Hustedt in Schmidt et al., 1959 (unassessed)
  » Species Triceratium subquadrangulare Hustedt in Schmidt et al., 1959 (unassessed)
  » Species Triceratium subradiatum Grunow in Cleve & Möller, 1879 (unassessed)
  » Species Triceratium subrotundatum sensu Forti, 1912 (unassessed)
  » Species Triceratium subundosum Hustedt, 1930 † accepted as Sheshukovia subundosa (Hustedt) Z.I.Gleser, 1984 † (unassessed)
  » Species Triceratium succinctum Truan & Witt, 1888 (unassessed)
  » Species Triceratium sundbyense Hustedt ex R.Simonsen, 1987 † (unassessed)
  » Species Triceratium swastika Long, Fuge & Smith, 1946 (unassessed)
  » Species Triceratium synicum N.I.Strelnikova, 1965 † (unassessed)
  » Species Triceratium szakalense Pantocsek, 1886 (unassessed)
  » Species Triceratium taeniatum Hustedt in Schmidt et al., 1959 (unassessed)
  » Species Triceratium tahitiense Castracane, 1886 (unassessed)
  » Species Triceratium tectum Pantocsek, 1892 (unassessed)
  » Species Triceratium temperei Brun in Brun, Bergon et al., 1890 (unassessed)
  » Species Triceratium tertiarium Pantocsek, 1889 (unassessed)
  » Species Triceratium tessellatum Greville, 1861 (unassessed)
  » Species Triceratium tetragonum Pantocsek, 1889 (unassessed)
  » Species Triceratium thumii J.D. Moller, 1892 (unassessed)
  » Species Triceratium thwaitesianum Greville, 1862 (unassessed)
  » Species Triceratium transylvanica Pantocsek ex F. W. Mills, 1935 (unassessed)
  » Species Triceratium triascium Pantocsek, 1889 (unassessed)
  » Species Triceratium trifoliatum Cleve, 1881 † (unassessed)
  » Species Triceratium trifoliatum Barker & Meakin, 1945 (unassessed)
  » Species Triceratium trifolium Schmidt in Schmidt et al., 1882 (unassessed)
  » Species Triceratium trilineatum Greville, 1865 (unassessed)
  » Species Triceratium triorbicum Schmidt in Schmidt et al., 1888 (unassessed)
  » Species Triceratium triplex Brun, 1896 (unassessed)
  » Species Triceratium tripolaris Tempère & Brun, 1889 (unassessed)
  » Species Triceratium trisinum (Mann) VanLandingham, 1968 (unassessed)
  » Species Triceratium trisulcum sensu Krotov & Schibkova, 1959 (unassessed)
  » Species Triceratium trisulcum sensu Schmidt in Schmidt et al., 1886 (unassessed)
  » Species Triceratium truanii Pantocsek, 1889 (unassessed)
  » Species Triceratium truncatum Brun in Brun & Tempère, 1889 (unassessed)
  » Species Triceratium tulkii Tempère in Bergon et al., 1890 (unassessed)
  » Species Triceratium tumescens Castracane, 1886 (unassessed)
  » Species Triceratium turgidulum Hustedt in Schmidt et al., 1959 (unassessed)
  » Species Triceratium turgidum Schmidt in Schmidt et al., 1882 (unassessed)
  » Species Triceratium turgidum Cleve, 1885 (unassessed)
  » Species Triceratium turriferum Truan y Luard & Witt, 1888 (unassessed)
  » Species Triceratium udiensis Hustedt in Schmidt et al., 1959 (unassessed)
  » Species Triceratium umbilicatum Ralfs in Pritchard, 1861 (unassessed)
  » Species Triceratium uncinatum Schmidt in Schmidt et al., 1886 (unassessed)
  » Species Triceratium undatum A.M. Edwards in Stodder, 1861 (unassessed)
  » Species Triceratium undatum Grunow, 1887 (unassessed)
  » Species Triceratium undatum Pantocsek, 1889 (unassessed)
  » Species Triceratium undosum Pantocsek, 1889 (unassessed)
  » Species Triceratium undulans Barker & Meakin, 1946 (unassessed)
  » Species Triceratium undulatum Brightwell, 1858 (unassessed)
    » Variety Triceratium undulatum var. petropolitana Grunow in Van Heurck, 1883 (uncertain, unassessed)
  » Species Triceratium undulatum Weisse, 1854 (unassessed)
  » Species Triceratium undulatum W. Smith, 1853 (unassessed)
    » Variety Triceratium undulatum var. undulatum Ehrenberg, 1844 (1845) (uncertain, unassessed)
  » Species Triceratium undum Euler (unassessed)
  » Species Triceratium unguiculatum Greville, 1864 (unassessed)
    » Forma Triceratium unguiculatum f. quinquangulum Sims & Ross, 1990 (uncertain, unassessed)
    » Forma Triceratium unguiculatum f. triangulum Sims & Ross, 1990 (uncertain, unassessed)
  » Species Triceratium uralense N.I.Strelnikova, 1965 † (unassessed)
  » Species Triceratium variable Brightwell, 1856 (unassessed)
  » Species Triceratium variegatum Greville, 1861 (unassessed)
  » Species Triceratium vastum Pantocsek, 1892 (unassessed)
  » Species Triceratium vates Pantocsek, 1892 (unassessed)
  » Species Triceratium ventriculosum Schmidt in Schmidt et al., 1886 (unassessed)
  » Species Triceratium venustum Witt, 1885 (unassessed)
  » Species Triceratium verecundum Hustedt in Schmidt et al., 1959 (unassessed)
  » Species Triceratium veterarium Hustedt in Schmidt et al., 1959 (unassessed)
  » Species Triceratium vetustum Hustedt in Schmidt et al., 1959 (unassessed)
  » Species Triceratium vittatum Pantocsek, 1889 (unassessed)
  » Species Triceratium wallichii Ralfs in Pritchard, 1861 (unassessed)
  » Species Triceratium websteri Tempère in Bergon et al., 1890 (unassessed)
  » Species Triceratium weissei Grunow ex Witt, 1885 † (unassessed)
  » Species Triceratium weisseianum Pantocsek, 1889 (unassessed)
  » Species Triceratium weissflogii Walker & Chase in Chase & Walker, 1887 (unassessed)
  » Species Triceratium weissflogii Grove & Sturt, 1887 (unassessed)
  » Species Triceratium weissii Grunow ex O. Witt, 1885 (unassessed)
    » Variety Triceratium weissii var. schmidti Frenguelli, 1936 (uncertain, unassessed)
    » Variety Triceratium weissii var. spinosa Forti, 1910 (uncertain, unassessed)
  » Species Triceratium wettsteinii Pantocsek, 1908 (unassessed)
  » Species Triceratium wettsteinii Pantocsek, 1910 (unassessed)
  » Species Triceratium wetzelii Hustedt ex Wetzel, 1935 (unassessed)
  » Species Triceratium whampoense A.F.Schwarz, 1874 (unassessed)
  » Species Triceratium wilkesii Harvey & J.W. Bailey, 1853 (1854) (unassessed)
  » Species Triceratium witti (unassessed)
    » Forma Triceratium witti f. pentagona Hustedt, 1935 (uncertain, unassessed)
  » Species Triceratium zonatum Greville, 1864 (unassessed)
Genus Trieres M.P.Ashworth & E.C.Theriot, 2013
marine, brackish, fresh
Not documented
Kociolek, J.P.; Blanco, S.; Coste, M.; Ector, L.; Liu, Y.; Karthick, B.; Kulikovskiy, M.; Lundholm, N.; Ludwig, T.; Potapova, M.; Rimet, F.; Sabbe, K.; Sala, S.; Sar, E.; Taylor, J.; Van de Vijver, B.; Wetzel, C.E.; Williams, D.M.; Witkowski, A.; Witkowski, J. (2021). DiatomBase. Triceratiaceae (Schütt) Lemmermann, 1899. Accessed at: https://www.diatombase.org/aphia.php?p=taxdetails&id=149049 on 2021-05-19
Date
action
by
2005-03-30 08:52:46Z
created
db_admin

basis of record Round, F.E.; Crawford, R.M.; Mann, D.G. (1990). The diatoms: biology and morphology of the genera. Cambridge University Press: London, UK. ISBN 0-521-363187. 747 pp. (look up in IMIS[details]   
 
 Present  Inaccurate  Introduced: alien  Containing type locality