DiatomBase
Between brackets is the number of accepted extant species
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- Bacillariophyceae (5 957)
- Subclass Bacillariophyceae incertae sedis (189)
- Subclass Bacillariophycidae (4 408)
- Subclass Coscinodiscophycidae (877)
- Superorder Biddulphianae (230)
- Superorder Chaetocerotanae (95)
- Superorder Corethranae (1)
- Superorder Coscinodiscanae (300)
- Order Arachnoidiscales (4)
- Order Asterolamprales (24)
- Order Aulacoseirales (50)
- Order Chrysanthemodiscales
- Order Coscinodiscales (146)
- Family Aulacodiscaceae (Schütt) Lemmermann, 1903 (12)
- Family Coscinodiscaceae Kützing, 1844 (76)
- Family Gossleriellaceae Round, 1990
- Family Heliopeltaceae H. L. Smith, 1872 (26)
- Genus Actinoptychus C.G. Ehrenberg, 1843 (26)
- Species Actinoptychus adamans Tempère & Brun in Brun & Tempère, 1889
- Species Actinoptychus adriaticus Grunow
- Species Actinoptychus aequalis Andrews in Andrews & Abbott, 1985
- Species Actinoptychus affinis Grunow in Schmidt et al., 1890
- Species Actinoptychus affinis Barker & Meakin, 1945
- Species Actinoptychus africanus Leuduger-Fortmorel, 1898
- Species Actinoptychus alternans Mann, 1907
- Species Actinoptychus amblyoceros (Ehrenberg) A.Schmidt, 1874
- Species Actinoptychus amoenus Leuduger-Fortmorel, 1898
- Species Actinoptychus ananinensis Pantocsek, 1889
- Species Actinoptychus anceps Leuduger-Fortmorel, 1879
- Species Actinoptychus ancorifer Schumann, 1867
- Species Actinoptychus anemone Brun in Brun & Tempère, 1889
- Species Actinoptychus angulatus [Mellor]?, 1920
- Species Actinoptychus annulatus (G.C.Wallich) Grunow
- Species Actinoptychus antarcticus (F.S.Castracane degli Antelminelli) H.Heiden accepted as Omphalopelta antarctica Castracane, 1886
- Species Actinoptychus antistrophus Brun in Schmidt et al., 1890
- Species Actinoptychus apicatus Ehrenberg, 1855
- Species Actinoptychus aquila Ehrenberg, 1843
- Species Actinoptychus arcuatus Schumann, 1867
- Species Actinoptychus arculifer Schmidt in Schmidt et al., 1886
- Species Actinoptychus areolatus (Ehrenberg) A.W.F.Schmidt, 1874 accepted as Omphalopelta areolata Ehrenberg, 1844
- Species Actinoptychus asiaticus Tempère & Brun in Brun & Tempère, 1889
- Species Actinoptychus aster Brun in Schmidt et al., 1892
- Species Actinoptychus atlanticus (Kain & E.A. Schultze) Schmidt in Schmidt et al., 1892 accepted as Actinodiscus atlanticus Kain & Schultze, 1889 †
- Species Actinoptychus australis (Grunow) Andrews, 1979 accepted as Actinoptychus vulgaris var. australis Grunow in Van Heurck, 1883
- Species Actinoptychus baccatus Brun, 1895
- Species Actinoptychus barboi Brun, 1894
- Species Actinoptychus barklyi fide Habirshaw
- Species Actinoptychus baxterii Pantocsek, 1903
- Species Actinoptychus besselli F.W. Payne, 1922
- Species Actinoptychus biformis Brun in Schmidt et al., 1890
- Species Actinoptychus bifrons Schmidt in Schmidt et al., 1886
- Species Actinoptychus bilingulatus ‘Grove Collection' according to Mills, 1933
- Species Actinoptychus bipunctatus K.E. Lohman, 1941
- Species Actinoptychus biseptenarius Ehrenberg, 1854
- Species Actinoptychus bismarckii A. Schmidt, 1886
- Species Actinoptychus biternarius Ehrenberg, 1843
- Species Actinoptychus biternatus Ehrenberg, 1854
- Species Actinoptychus boliviensis C.Janisch
- Species Actinoptychus boryanus Pantocsek, 1889
- Species Actinoptychus brunii Schmidt in Schmidt et al., 1890
- Species Actinoptychus calicinus Schmidt in Schmidt et al., 1888
- Species Actinoptychus californicus Pantocsek, 1903
- Species Actinoptychus campanulifer Schmidt, 1875
- Species Actinoptychus capensis Grunow in Van Heurck, 1883
- Species Actinoptychus cathedralis Brun, 1890
- Species Actinoptychus cellulosus (Ehrenberg) M. Peragallo, 1897 accepted as Omphalopelta cellulosa Ehrenberg, 1844
- Species Actinoptychus ceres Ehrenberg, 1844
- Species Actinoptychus ceylanensis Leuduger-Fortmorel, 1879
- Species Actinoptychus chenevierei Long, Fuge & Smith, 1946
- Species Actinoptychus clavatus Brun in Schmidt et al., 1890
- Species Actinoptychus clavifer Schumann, 1867
- Species Actinoptychus clevei Schmidt in Schmidt et al., 1886
- Species Actinoptychus coloradoi H. Peragallo in Tempère & H. Peragallo, 1909
- Species Actinoptychus concentricus Schmidt in Schmidt et al., 1890
- Species Actinoptychus constellatus Brun, 1895
- Species Actinoptychus constrictus Grove & Sturt, 1887
- Species Actinoptychus crepido Schmidt in Schmidt et al., 1890
- Species Actinoptychus cruciatus Schumann, 1867
- Species Actinoptychus crucitinus
- Species Actinoptychus decorans A.W.F.Schmidt
- Variety Actinoptychus decorans var. decorans Schmidt in Schmidt et al., 1890
- Variety Actinoptychus decorans var. japonica Schmidt in Schmidt et al., 1890
- Species Actinoptychus decumanus ‘Schmidt' Forti in Tempère & Peragallo, 1910
- Species Actinoptychus degenii Pantocsek, 1909
- Species Actinoptychus delectus Schmidt in Schmidt et al., 1874
- Species Actinoptychus delicatissimus Witt, 1885
- Species Actinoptychus denarius Ehrenberg, 1843
- Species Actinoptychus dilatatus Pantocsek, 1886
- Species Actinoptychus dives (Ehrenberg) Ehrenberg
- Species Actinoptychus divisus ‘Kisselev' VanLandingham, 1967
- Species Actinoptychus doljensis Jurilj, 1957
- Species Actinoptychus duodenarius Ehrenberg accepted as Actinocyclus duodenarius (Ehrenberg) W. Smith, 1856
- Species Actinoptychus ehrenbergii Grunow, 1867
- Species Actinoptychus elegans Leuduger-Fortmorel, 1879
- Species Actinoptychus elegans Ralfs in Pritchard, 1861
- Species Actinoptychus elegantulus Grove & Sturt, 1887 †
- Species Actinoptychus erinaceus Tempère & Brun in Brun & Tempère, 1889
- Species Actinoptychus erosus Castracane, 1886
- Species Actinoptychus excellens Schumann, 1867
- Species Actinoptychus flos-marina Brun, 1891
- Species Actinoptychus frenguellii Müller-Melchers, 1951
- Species Actinoptychus fuscus Grove & Sturt in Schmidt et al., 1888
- Species Actinoptychus gallegosi Hanna & Grant, 1926
- Species Actinoptychus geminus Schmidt in Schmidt et al., 1886
- Species Actinoptychus glabratus (Grunow) Van Heurck
- Species Actinoptychus gracilis Schumann, 1867
- Species Actinoptychus grovei Thomas in Brun, J., Cleve, P.T., Grove, E., Rattray J., Tempère, J. & Thomas, 1890
- Species Actinoptychus gruendleri A.W.F.Schmidt
- Species Actinoptychus grunowii A. Schmidt in Schmidt et al., 1874
- Species Actinoptychus guttatus (Østrup) M. Peragallo in H. Peragallo & M. Peragallo, 1911 accepted as Actinoptychus moronensis var. guttata Østrup, 1904
- Species Actinoptychus halionyx Grunow, 1867 accepted as Actinoptychus splendens var. halionyx (Grunow) Grunow in Van Heurck, 1883
- Species Actinoptychus harrensis Fenner, 1994
- Species Actinoptychus heliopelta Grunow, 1883
- Species Actinoptychus heterostrophus A. Schmidt in Schmidt et al., 1875
- Species Actinoptychus hexagonus Grunow in Schmidt, 1874
- Species Actinoptychus hexapterus Ehrenberg, 1843
- Species Actinoptychus hillabyanus J.-J.Brun
- Species Actinoptychus hispidus Grunow in Van Heurck, 1883
- Species Actinoptychus hungaricus Pantocsek, 1886
- Species Actinoptychus hüttlingerianus Truan y Luard & Witt, 1888
- Species Actinoptychus imperator Pantocsek, 1892
- Species Actinoptychus incertus (Grunow) Wolle, 1890 accepted as Actinocyclus incertus Grunow in Van Heurck, 1883
- Species Actinoptychus incisa (Grunow in Schmidt et al.) F.W. Mills, 1933 accepted as Actinoptychus glabratus var. incisa Grunow in Van Heurck, 1883
- Species Actinoptychus indeterminatus Long, Fuge & Smith, 1946
- Species Actinoptychus indicus Brun, 1894
- Species Actinoptychus inopinatus A. Schmidt in Schmidt et al., 1874
- Species Actinoptychus intermedius A. Schmidt in Schmidt et al., 1886
- Species Actinoptychus interpositus Brun, 1893
- Species Actinoptychus interpunctatus Brightwell, 1860
- Species Actinoptychus irregularis Grunow in Van Heurck, 1883
- Species Actinoptychus janischii Grunow
- Species Actinoptychus japonicus Grunow in A. Schmidt et al., 1874
- Species Actinoptychus japonicus (Castracane) M. Peragallo, 1897 accepted as Omphalopelta japonica Castracane, 1886
- Species Actinoptychus jupiter Ehrenberg, 1843
- Species Actinoptychus kernensis Hanna, 1932
- Species Actinoptychus klavsenii Schmidt in Schmidt et al., 1893
- Species Actinoptychus kraussii Schmidt in Schmidt et al., 1892
- Species Actinoptychus kusnetzkianus Pantocsek, 1892
- Species Actinoptychus kymatodes Pantocsek
- Species Actinoptychus laevigatus Grunow
- Species Actinoptychus leptomitos Pantocsek, 1886
- Species Actinoptychus lobatus Brun, 1896
- Species Actinoptychus lucidus Brun, 1894
- Species Actinoptychus luna Janisch, 1862
- Species Actinoptychus macraei Deby in Brun, Bergon, Deby & Tempère, 1891
- Species Actinoptychus maculatus E.Grove & G.Sturt
- Species Actinoptychus maculosus Pantocsek, 1892
- Species Actinoptychus madreporus Brun, 1896
- Species Actinoptychus mambolensis Woodhead & Tweed, 1958
- Species Actinoptychus marmoreus Brun in Schmidt et al., 1890
- Species Actinoptychus marylandicus Andrews, 1974
- Species Actinoptychus marylandicus (Brightwell) Schmidt in Schmidt et al., 1875 accepted as Triceratium marylandicum Brightwell, 1856
- Species Actinoptychus meakinii VanLandingham, 1967
- Species Actinoptychus microsticta (Grunow) Mertz, 1966 accepted as Actinoptychus undulatus f. microsticta Grunow in Van Heurck, 1883
- Species Actinoptychus millsii Chenevière, 1934
- Species Actinoptychus minor ‘Grunow in Van Heurck' VanLandingham, 1979
- Species Actinoptychus minutus Greville
- Species Actinoptychus mirabilis Leuduger-Fortmorel, 1879
- Species Actinoptychus mirans Leuduger-Fortmorel, 1898
- Species Actinoptychus moelleri Grunow
- Species Actinoptychus moronensis (Greville) Cleve
- Species Actinoptychus mosaïca Brun, 1891
- Species Actinoptychus muelleri Pantocsek, 1910
- Species Actinoptychus neogradensis Pantocsek, 1886
- Species Actinoptychus nicobaricus (Grunow) Andrews, 1979 accepted as Actinoptychus splendens var. nicobarica Grunow in Van Heurck, 1883
- Species Actinoptychus nitidus (Greville) A.Schmidt, 1874
- Species Actinoptychus nonarius Ehrenberg, 1843
- Species Actinoptychus notabilis Pantocsek, 1892
- Species Actinoptychus notabilis Brun in Schmidt et al., 1890
- Species Actinoptychus numa ‘(Ehrenberg) Chase in Habirshaw et al., 1888' Mills, 1933
- Species Actinoptychus octodenarius Ehrenberg, 1854 accepted as Actinocyclus octodenarius Ehrenberg, 1839
- Species Actinoptychus octonarius (Ehrenberg) Kützing, 1844 accepted as Actinocyclus octonarius var. octonarius Ehrenberg, 1837
- Species Actinoptychus oliveranus 'O'Meara' Mills, 1933
- Species Actinoptychus omaruensis Grunow in Schmidt et al., 1888
- Species Actinoptychus omphalopelta Grunow, 1867
- Species Actinoptychus oppenoorthi Reinhold, 1937
- Species Actinoptychus orientalis Kisselev, 1931
- Species Actinoptychus packi G.D.Hanna
- Species Actinoptychus pannonicus Hajós †
- Species Actinoptychus pantocsekii Truan in Pantocsek, 1886
- Species Actinoptychus papillo Brun in Brun & Tempère, 1889
- Species Actinoptychus paradoxus Greville, 1863
- Species Actinoptychus pardus
- Species Actinoptychus parvus Mann, 1925
- Species Actinoptychus paynei
- Species Actinoptychus pellucidus Grunow in Van Heurck, 1883
- Species Actinoptychus perennis Brun in Schmidt et al., 1890
- Species Actinoptychus pericavatus J.-J.Brun
- Species Actinoptychus perisetosus
- Species Actinoptychus perplexus Hanna & Grant, 1926
- Species Actinoptychus pethoei Pantocsek, 1889
- Species Actinoptychus petitii Pantocsek, 1889
- Species Actinoptychus pfitzeri Gründler in Schmidt et al., 1875
- Species Actinoptychus planus Mann, 1907
- Species Actinoptychus praetor Schmidt in Schmidt et al., 1886
- Species Actinoptychus pseudoantistrophus M. Peragallo in Tempère & H. Peragallo, 1908
- Species Actinoptychus pulchellus
- Species Actinoptychus punctatus (Ehrenberg) Tempère & H. Peragallo, 1889-1895 accepted as Omphalopelta punctata Ehrenberg, 1844 (1845)
- Species Actinoptychus punctulatus Pantocsek, 1886
- Species Actinoptychus pyxidicula Krishtofovich, 1941
- Species Actinoptychus quaternarius Ehrenberg, 1844
- Species Actinoptychus quaternatus ‘Ehrenberg' Janisch, 1861
- Species Actinoptychus quatuordenarius Ehrenberg, 1844
- Species Actinoptychus quinarius ‘Ehrenberg' Janisch, 1862
- Species Actinoptychus racemosus Schmidt in Schmidt et al., 1890
- Species Actinoptychus radiolatus Grunow in Van Heurck, 1883
- Species Actinoptychus radulus Mann, 1907
- Species Actinoptychus raeanus Castracane, 1886
- Species Actinoptychus ralfsii
- Species Actinoptychus ranunculus Brun in Schmidt et al., 1890
- Species Actinoptychus rechingeri M. Peragallo in H. Peragallo & M. Peragallo, 1911
- Species Actinoptychus reinholdi M. Hajós, 1968
- Species Actinoptychus reticulatus Jurilj, 1957
- Species Actinoptychus reticulatus Leuduger-Fortmorel, 1898
- Species Actinoptychus reticulatus Pantocsek, 1886
- Species Actinoptychus rotifer Leuduger-Fortmorel, 1898
- Species Actinoptychus rotula Long, Fuge & Smith, 1946
- Species Actinoptychus schmidtii Pantocsek, 1889
- Species Actinoptychus sculptilis A.W.F.Schmidt
- Species Actinoptychus sedenarius Ehrenberg accepted as Actinocyclus sedenarius Ehrenberg, 1839
- Species Actinoptychus seductilis Schmidt in Schmidt et al., 1875
- Species Actinoptychus segmentatus Brun in Schmidt et al., 1890
- Species Actinoptychus semilaevis Grunow in Pantocsek, 1886
- Species Actinoptychus semilevis Grunow in Pantocsek
- Species Actinoptychus semiocellatus Schumann, 1867
- Species Actinoptychus semseyi Pantocsek, 1889
- Species Actinoptychus senarius (Ehrenberg) Ehrenberg, 1843 accepted as Actinocyclus senarius Ehrenberg, 1838
- Species Actinoptychus separatus Leuduger-Fortmorel, 1898
- Species Actinoptychus septenarius Ehrenberg, 1853
- Species Actinoptychus shrubsolianus (Castracane) M. Peragallo, 1897 accepted as Omphalopelta shrubsoliana Castracane, 1886
- Species Actinoptychus sibiricus Paramonova, 1964
- Species Actinoptychus signatus Long, Fuge & Smith, 1946
- Species Actinoptychus simbirskianus A. Schmidt, 1875 †
- Species Actinoptychus similaris Sheshukova-Poretskaya & Gleser, 1964
- Species Actinoptychus socius A. Schmidt in Schmidt et al., 1874
- Species Actinoptychus solisi Hanna & Grant, 1926
- Species Actinoptychus speciosus Meister, 1935
- Species Actinoptychus spinifer Grunow in Schmidt et al., 1890
- Species Actinoptychus spinifer Pantocsek, 1892
- Species Actinoptychus spiniferus Grunow in Van Heurck, 1883
- Species Actinoptychus spinosus (Brightwell) Ralfs in Pritchard, 1861 accepted as Actinocyclus spinosus Brightwell, 1860
- Species Actinoptychus spinulosus Schmidt in Schmidt et al., 1890
- Species Actinoptychus splendens (Shadbolt) Ralfs ex Pritchard, 1861
- Species Actinoptychus staubii Pantocsek, 1889
- Species Actinoptychus stella A.W.F.Schmidt, 1886
- Species Actinoptychus sturii Pantocsek, 1886
- Species Actinoptychus suavis Brun, 1896
- Species Actinoptychus subangulatus Schmidt in Schmidt et al., 1888
- Species Actinoptychus suborbicularis Grunow in Cleve & Möller, 1879
- Species Actinoptychus subtilis Ehrenberg, 1873
- Species Actinoptychus sumatrensis Leuduger-Fortmorel, 1892
- Species Actinoptychus summissus Schmidt in Schmidt et al., 1874
- Species Actinoptychus superbus ‘J.W. Bailey' according to Chase, 1885
- Species Actinoptychus szabói Pantocsek, 1886
- Species Actinoptychus szontaghii Pantocsek, 1889
- Species Actinoptychus taeniatus Hustedt, 1955
- Species Actinoptychus taffi Hanna, 1927
- Species Actinoptychus temperei A.W.F.Schmidt
- Species Actinoptychus tener (E.Grove & G.Sturt) E.Grove & G.Sturt accepted as Actinoptychus pulchellus var. tenera Grove & Sturt, 1887
- Species Actinoptychus tenuis Strelnikova, 1974
- Species Actinoptychus ternarius C.Janisch
- Species Actinoptychus ternarius (Ehrenberg) Kützing, 1844 accepted as Actinocyclus ternarius Ehrenberg, 1839
- Species Actinoptychus ternatus ‘Ehrenberg' Janisch, 1861
- Species Actinoptychus thumii (A.W.F.Schmidt) G.D.Hanna, 1932 accepted as Actinoptychus stella f. thumii Schmidt in Schmidt et al., 1886
- Species Actinoptychus triacriformis Chin in Chin et al., 1980
- Species Actinoptychus triangulatus
- Species Actinoptychus trifolium Tempère & Brun in Brun & Tempère, 1889
- Species Actinoptychus trifurcatus Tempère & Brun in Brun & Tempère, 1889
- Species Actinoptychus trigonus Schmidt in Schmidt et al., 1874
- Species Actinoptychus trilineatus Boyer, 1922
- Species Actinoptychus trilingulatus (Brightwell) Ralfs
- Species Actinoptychus trilobatus Hajós, 1971
- Species Actinoptychus trilunatus Brun, 1893
- Species Actinoptychus triradiatus ‘(Roper) Ralfs in Pritchard' according to VanLandingham, 1967 accepted as Actinocyclus triradiatus Roper, 1858
- Species Actinoptychus trivolva Brun, 1891
- Species Actinoptychus truanii A.W.F.Schmidt
- Species Actinoptychus tschestnovii Pantocsek, 1889
- Species Actinoptychus tuberculatus Strelnikova, 1974
- Species Actinoptychus tuberosus Leuduger-Fortmorel, 1879
- Species Actinoptychus turgidus (Tempère & Brun) Tempère & Brun in Schmidt et al., 1892 accepted as Actinoptychus nitidus var. turgida Tempère in Brun & Tempère, 1889
- Species Actinoptychus undulatus (J.W.Bailey) Ralfs, 1861 accepted as Actinoptychus senarius (Ehrenberg) Ehrenberg, 1843
- Species Actinoptychus undulatus J.W.Bailey ex Hustedt, 1927 accepted as Actinocyclus undulatus J.W.Bailey, 1842
- Species Actinoptychus undulatus ‘Ehrenberg' A. Schmidt, 1888
- Species Actinoptychus undulatus Long, Fuge & Smith, 1946
- Species Actinoptychus vancouveri Mackay in L.W. Bailey, 1924
- Species Actinoptychus vanheurckii Pantocsek, 1886
- Species Actinoptychus velatinum Schmidt in Schmidt et al., 1890
- Species Actinoptychus velatus Ehrenberg, 1844
- Species Actinoptychus vicenarius Ehrenberg, 1843
- Species Actinoptychus virginicus (Grunow) Andrews, 1976 accepted as Actinoptychus vulgaris var. virginica Grunow in Van Heurck, 1883
- Species Actinoptychus vlatinum Schmidt in Schmidt et al., 1890
- Species Actinoptychus vulgaris Schumann, 1867
- Species Actinoptychus weissflogii Schmidt in Schmidt et al., 1874
- Species Actinoptychus wilmottii Chenevière, 1934
- Species Actinoptychus wittianus Truan y Luard & Witt, 1888
- Species Actinoptychus wittii C.Janisch, 1886
- Species Actinoptychus wollei M. Peragallo in Tempère & Peragallo, 1909
- Genus Anthodiscina P.C. Silva, 1970 †
- Genus Anthodiscus E. Grove & G. Sturt, 1887
- Genus Lepidodiscus O.N. Witt, 1886 †
- Genus Polymyxus J.W. Bailey ex L.W. Bailey, 1861
- Genus Trossulus Ross & Sims, 2002
- Family Hemidiscaceae Hendey, 1937 emend Simonsen, 1975 (32)
- Family Hemipeltaceae
- Family Rocellaceae
- Family Stellarimaceae V.A.Nikolaev ex P.A.Sims & G.R.Hasle, 1990
- Order Ethmodiscales
- Order Melosirales (54)
- Order Orthoseirales (18)
- Order Paraliales (4)
- Order Stictocycales
- Order Stictodiscales
- Superorder Cymatosirophycanae (10)
- Superorder Lithodesmiophycanae (7)
- Superorder Rhizosolenianae (37)
- Superorder Thalassiosiranae (192)
- Order Arcanodiscales (5)
- Order Stictocyclales
- Subclass Fragilariophycidae (483)
- Order Centrales
