Abas wittii (Grunow) R.Ross & P.A.Sims, 1980 †
Ailuretta cerataulinoides Sims, 1986 † (uncertain > unassessed )
Ailuretta rotunda Sims, 1986 † (uncertain > unassessed )
Alveoflexus firthii Hendey & Sims, 1984 † (uncertain > unassessed )
Amphitetras acutangula (Greville) De Toni, 1894 accepted as Triceratium acutangulum var. acutangulum Greville, 1864
Amphitetras adriatica Kützing, 1845 (uncertain > unassessed )
Amphitetras alternans H.L. Smith in Christian, 1887 (uncertain > unassessed )
Amphitetras anderssonii (Cleve) De Toni, 1894 accepted as Triceratium anderssonii Cleve, 1881
Amphitetras antediluviana Ehrenberg, 1840
Amphitetras antediluviana sensu? Brightwell, 1859 (uncertain > unassessed )
Amphitetras antediluviana var. antediluviana Ehrenberg, 1840 (uncertain > unassessed )
Amphitetras antediluviana var. antediluviana sensu Peragallo & Peragallo, 1901 (uncertain > unassessed )
Amphitetras antediluviana var. beta W. Smith, 1855 (uncertain > unassessed )
Amphitetras antediluviana var. beta cruciformis ‘Smith' H. Peragallo in Pelletan, 1889 (uncertain > unassessed )
Amphitetras antediluviana var. cruciformis Tempère & Peragallo, 1911 (uncertain > unassessed )
Amphitetras antediluviana var. gamma H. Peragallo in Pelletan (uncertain > unassessed )
Amphitetras antediluviana var. minor Peragallo & Peragallo, 1902 (uncertain > unassessed )
Amphitetras antediluviana var. pentagonalis H. Peragallo in Pelletan, 1889 (uncertain > unassessed )
Amphitetras antediluviana var. temperei (Frenguelli) Sar & Sala, 2009 †
Amphitetras arisata Shadbolt, 1854 (uncertain > unassessed )
Amphitetras atlantica (Castracane) De Toni, 1894 accepted as Triceratium atlanticum Castracane, 1886
Amphitetras balearica (Cleve & Grunow in Cleve) De Toni, 1894 accepted as Triceratium balearicum f. balearicum Cleve & Grunow in Cleve, 1881
Amphitetras balearica var. leudugeri De Wildeman, 1897 (uncertain > unassessed )
Amphitetras bicornis (Cleve) De Toni, 1894 † accepted as Pseudictyota bicorne (Cleve) P.A. Sims & D. M. Williams in Sims et al., 2018 †
Amphitetras blandita (Greville) De Toni, 1894 accepted as Triceratium blanditum Greville, 1861
Amphitetras campechiana (Grunow) De Toni, 1894 accepted as Triceratium campechianum Grunow in Cleve, 1878
Amphitetras canalifera (Brun) De Toni, 1894 accepted as Triceratium canalifer Brun, 1891
Amphitetras coerulescens (Pantocsek) De Toni, 1894 accepted as Triceratium coerulescens Pantocsek, 1892
Amphitetras conciliata (Pantocsek) De Toni, 1894 accepted as Triceratium conciliatum var. conciliatum Pantocsek, 1889
Amphitetras conciliata var. validior (Pantocsek) De Toni, 1894 accepted as Triceratium conciliatum var. validior Pantocsek, 1889
Amphitetras cornuta (Greville) De Toni, 1894 accepted as Triceratium cornutum R.K.Greville † accepted as Trinacria cornuta (R.K.Greville) P.A.Sims & R.Ross, 1988 †
Amphitetras cruciata Janisch & Rabenhorst, 1863 (uncertain > unassessed )
Amphitetras crucifera Kitton in Ralfs in Pritchard, 1861 (uncertain > unassessed )
Amphitetras crux Brightwell, 1859 (uncertain > unassessed )
Amphitetras cuspidata L.W. Bailey, 1862 (uncertain > unassessed )
Amphitetras dutertrei (Pantocsek & Tempère) De Toni, 1894 accepted as 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 †
Amphitetras elegans Greville, 1866 (uncertain > unassessed )
Amphitetras excavata W. Smith, 1855 (uncertain > unassessed )
Amphitetras favosa Harvey & J.W. Bailey, 1853 (uncertain > unassessed )
Amphitetras gemmata Ehrenberg, 1858 (uncertain > unassessed )
Amphitetras godeffroyi ‘Grunow' Mills, 1935 (uncertain > unassessed )
Amphitetras graeffeiana Witt, 1873 (uncertain > unassessed )
Amphitetras grevillei De Toni
Amphitetras grevillei var. grevillei De Toni, 1894 (uncertain > unassessed )
Amphitetras grevillei var. parvula ‘Greville' Mills, 1935 (uncertain > unassessed )
Amphitetras inconspicua (Greville) De Toni, 1894 accepted as Triceratium inconspicuum Greville, 1861 † accepted as Fenneria brachiata (T.Brightwell) J.Witkowski, 2018 †
Amphitetras ingloria (Greville) De Toni, 1894 accepted as Triceratium inglorium Greville, 1865
Amphitetras intermedia (Grove & Sturt) De Toni, 1894 accepted as Triceratium intermedium Grove & Sturt, 1887
Amphitetras kusnetzkiana (Pantocsek) De Toni, 1894 accepted as Triceratium kusnetzkianum Pantocsek, 1889
Amphitetras lamprodictya Ehrenberg, 1860 (uncertain > unassessed )
Amphitetras lanceolata (Pantocsek) De Toni, 1894 accepted as Triceratium lanceolatum Pantocsek, 1889
Amphitetras lata (Greville) De Toni, 1894 accepted as Triceratium latum var. latum Greville, 1865
Amphitetras leptotis Ehrenberg, 1862 (uncertain > unassessed )
Amphitetras mamillaris Ehrenberg, 1872 (uncertain > unassessed )
Amphitetras margaritifera (Cleve) De Toni, 1894 accepted as Triceratium margaritiferum Cleve, 1881
Amphitetras minuta Greville, 1861 (uncertain > unassessed )
Amphitetras mortimerii ‘Habirshaw', 1877 (uncertain > unassessed )
Amphitetras nobilis Greville, 1865 (uncertain > unassessed )
Amphitetras oculata (Greville) De Toni, 1894 accepted as Triceratium oculatum f. oculatum Greville, 1864
Amphitetras ornata Shadbolt
Amphitetras ornata var. hirsuta Castracane, 1886 (uncertain > unassessed )
Amphitetras ornata var. ornata Shadbolt, 1854 (uncertain > unassessed )
Amphitetras parallela Ehrenberg, 1840 (uncertain > unassessed )
Amphitetras parvula Greville, 1863 (uncertain > unassessed )
Amphitetras parvula Janisch & Rabenhorst, 1863 (uncertain > unassessed )
Amphitetras perryana (Truan y Luard & Witt) De Toni, 1894 accepted as Triceratium perryanum Truan y Luard & Witt, 1888
Amphitetras pethoei (Pantocsek) De Toni, 1894 accepted as Triceratium pethoei Pantocsek, 1889
Amphitetras producta Greville, 1862 (uncertain > unassessed )
Amphitetras pulvillus (Castracane) De Toni, 1894 accepted as Triceratium pulvillus Castracane, 1886
Amphitetras punctata Greville, 1862 (uncertain > unassessed )
Amphitetras quadrangularis (Greville) De Toni, 1894 accepted as Triceratium quadrangulare Greville, 1865
Amphitetras quadricornis (Greville) De Toni, 1894 accepted as Triceratium quadricorne Greville, 1865
Amphitetras quadrinotatum (Ehrenberg, Schmidt) Prema, P. & T. V. Desikachary, 2012 †
Amphitetras radiata Greville, 1862 (uncertain > unassessed )
Amphitetras radiatopunctata Missuna, 1914 (uncertain > unassessed )
Amphitetras rectangularis (Grove & Sturt) De Toni, 1894 accepted as Triceratium rectangulare Grove & Sturt, 1887
Amphitetras sarniensis ‘Greville' Chase (uncertain > unassessed )
Amphitetras sturtii (Pantocsek) De Toni, 1894 accepted as Triceratium sturtii Pantocsek, 1886
Amphitetras subrotundata Janisch in Schmidt et al., 1886 (uncertain > unassessed )
Amphitetras tessellata Shadbolt, 1854 (uncertain > unassessed )
Amphitetras tetragona (Pantocsek) De Toni, 1894 accepted as Triceratium tetragonum Pantocsek, 1889
Amphitetras unguiculata (Greville) De Toni, 1894 accepted as Triceratium unguiculatum Greville, 1864
Amphitetras wilkesii Harvey & J.W. Bailey, 1854 (uncertain > unassessed )
Amphitetras zonatulata (Greville) De Toni, 1894 accepted as Triceratium zonatulatum f. zonulatum Greville, 1865
Amphitetras zonatulata f. trigonum (Schmidt) De Wildeman, 1899 accepted as Triceratium zonatulatum f. trigona Schmidt in Schmidt et al., 1886
Anaulus acutus Brun, 1896 (uncertain > unassessed )
Anaulus americanus Hustedt, 1955 (uncertain > unassessed )
Anaulus australis Drebes & Schulz, 1989 (uncertain > unassessed )
Anaulus balticus Simonsen, 1959 (uncertain > unassessed )
Anaulus birostratus (Grunow) Grunow
Anaulus birostratus De Toni, 1894 (uncertain > unassessed )
Anaulus birostratus f. angustior Grunow in Van Heurck, 1882 (uncertain > unassessed )
Anaulus birostratus f. birostratus (Grunow) Grunow in Van Heurck, 1882 accepted as Biddulphia birostrata Grunow, 1863
Anaulus birostratus var. acuta Brun, 1896 (uncertain > unassessed )
Anaulus californicus Ehrenberg ex Cleve & Möller, 1879 (uncertain > unassessed )
Anaulus californicus Long, Fuge & Smith, 1946 (uncertain > unassessed )
Anaulus campylodiscus Ehrenberg, 1844 (uncertain > unassessed )
Anaulus constrictus ‘Ehrenberg' according to De Toni, 1844 (uncertain > unassessed )
Anaulus creticus Drebes & Schulz, 1981 accepted as Ceratanaulus creticus (Drebes & Schulz, 1981) Górecka, Witkowski, Dąbek & Ashworth, 2020
Anaulus debilis (Grunow in Van Heurck) Van Heurck, 1885 accepted as Eunotogramma debile Grunow in Van Heurck, 1883