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)
- Genus Aulacodiscus C.G. Ehrenberg, 1844 (12)
- Species Aulacodiscus acutus J.Rattray, 1888 †
- Species Aulacodiscus adonis
- Species Aulacodiscus aemulans Barker & Meakin, 1948
- Species Aulacodiscus affinis Grunow, 1876
- Species Aulacodiscus africanus Cottam, 1876
- Species Aulacodiscus africanus Leuduger-Fortmorel, 1898
- Species Aulacodiscus allorgei Chenevière, 1934
- Species Aulacodiscus alternans Long, Fuge & Smith, 1946
- Species Aulacodiscus americanus Long, Fuge & Smith, 1946
- Species Aulacodiscus amherstia Venkateswarlu & Round, 1973
- Species Aulacodiscus amoenus Greville, 1864
- Species Aulacodiscus ananinensis Pantocsek, 1889
- Species Aulacodiscus anastomosans Wise, 1956
- Species Aulacodiscus angulatus Greville, 1863
- Species Aulacodiscus anthoides Schmidt in Schmidt et al., 1886
- Species Aulacodiscus antiquus Pantocsek, 1889
- Species Aulacodiscus apedicellatus Rattray, 1888
- Species Aulacodiscus archangelskianus
- Species Aulacodiscus areolatus O'Meara, 1878
- Species Aulacodiscus argus (Ehrenberg) A.Schmidt, 1886 accepted as Tripodiscus argus Ehrenberg, 1839
- Species Aulacodiscus asiaticus
- Species Aulacodiscus asperulus ‘Rattray' Burke & Woodward, 1969
- Species Aulacodiscus atlanticus Tempère in Tempère & Peragallo, 1908
- Species Aulacodiscus attenuatus Rattray, 1888
- Species Aulacodiscus aucklandicus Grunow
- Species Aulacodiscus australiensis Hustedt in Schmidt et al., 1959
- Species Aulacodiscus australiensis Hustedt ex Simonsen, 1987
- Species Aulacodiscus barbadensis Ralfs in Pritchard, 1861
- Species Aulacodiscus barberi N.I. Hendey & P.A. Sims, 1984
- Species Aulacodiscus beeveriae Johnson, 1861
- Species Aulacodiscus beeveriae sensu Grove & Sturt, 1887
- Species Aulacodiscus behani Hanna & Brigger, 1964
- Species Aulacodiscus beringensis (Mann) Boyer, 1927 accepted as Tripodiscus beringensis Mann, 1907
- Species Aulacodiscus bifrons Strelnikova, 1966 †
- Species Aulacodiscus boliviensis Brébisson manuscript in Pritchard, 1861
- Species Aulacodiscus bonapartei Pantocsek, 1909
- Species Aulacodiscus bonei Woodward, 1967
- Species Aulacodiscus boryanus Pantocsek, 1889
- Species Aulacodiscus breviprocessus Strelnikova, 1974
- Species Aulacodiscus brightwellii Ralfs ms. in Pritchard, 1861
- Species Aulacodiscus brightwellii Janisch, 1861
- Species Aulacodiscus brownei Norman ex Pritchard, 1861
- Species Aulacodiscus brunii A. Schmidt in Schmidt et al., 1890
- Species Aulacodiscus bullatus Wise, 1956
- Species Aulacodiscus caelatus
- Species Aulacodiscus californicus ‘J.W. Bailey ms.' according to Habirshaw
- Species Aulacodiscus carruthersianus Kitton & Grove manuscript ex Rattray, 1888
- Species Aulacodiscus carruthersii Kitton & Grove in A. Schmidt, 1890
- Species Aulacodiscus catenarius Witt in Schmidt et al., 1886
- Species Aulacodiscus cellosus
- Species Aulacodiscus cellulosus
- Species Aulacodiscus chasei Pantocsek, 1886
- Species Aulacodiscus cinctus Greville manuscript ex Rattray, 1888
- Species Aulacodiscus circumdatus Schmidt in Schmidt et al., 1876
- Species Aulacodiscus comberi
- Species Aulacodiscus compactus Rattray, 1888
- Species Aulacodiscus concentricus (Mann) Boyer, 1927 accepted as Tripodiscus concentricus Mann, 1907
- Species Aulacodiscus concinnus Kitton manuscript ex Rattray, 1888
- Species Aulacodiscus conspectus Wise, 1956
- Species Aulacodiscus convexus Grove & Sturt, 1887
- Species Aulacodiscus cornutus Brun in Schmidt et al., 1892
- Species Aulacodiscus coronatus Grove manuscript in Rattray, 1888
- Species Aulacodiscus cosmiodiscus (Mann) F.W. Mills, 1933 accepted as Tripodiscus cosmiodiscus Mann, 1907
- Species Aulacodiscus crater Brun in Brun & Tempère, 1889
- Species Aulacodiscus cretaceus Hanna, 1927
- Species Aulacodiscus cruciatus Pantocsek, 1889
- Species Aulacodiscus crucifer (Shadbolt) A. Schmidt in Schmidt et al., 1876 accepted as Eupodiscus crucifer Shadbolt, 1854
- Species Aulacodiscus crux Ehrenberg, 1844
- Species Aulacodiscus crux sensu Janisch, 1861
- Species Aulacodiscus currus Hanna & Brigger, 1964
- Species Aulacodiscus darvinii Pantocsek, 1889
- Species Aulacodiscus debyi Pantocsek, 1886
- Species Aulacodiscus decorus sensu Grove & Sturt, 1887
- Species Aulacodiscus decorus sensu A. Schmidt in Schmidt et al., 1876
- Species Aulacodiscus deformis ‘Chase', 1885
- Species Aulacodiscus dispersus Rattray, 1888
- Species Aulacodiscus distinguendus Hustedt in Schmidt et al., 1958
- Species Aulacodiscus dubius Azpeitia, 1911
- Species Aulacodiscus ehrenbergii Janisch, 1861
- Species Aulacodiscus elegans Grove & Sturt, 1887
- Species Aulacodiscus elegans Ehrenberg, 1854
- Species Aulacodiscus eminens Barker & Meakin, 1944
- Species Aulacodiscus erectus Long, Fuge & Smith, 1946
- Species Aulacodiscus erinaceus Barker & Meakin, 1948
- Species Aulacodiscus excavatus
- Species Aulacodiscus exiguus
- Species Aulacodiscus extans Greville, 1864
- Species Aulacodiscus fasciculatus Gleser in Sheschukova-Poretskaya & Gleser, 1964
- Species Aulacodiscus floridanus (Boyer) F.W. Mills, 1933 accepted as Auliscus floridanus Boyer, 1920
- Species Aulacodiscus formosus Arnott in Pritchard, 1861
- Variety Aulacodiscus formosus var. formosus Arnott ex Pritchard, 1861
- Variety Aulacodiscus formosus var. robusta ‘Grove Collection' according to Mills, 1933
- Species Aulacodiscus fugei Barker & Meakin, 1947
- Species Aulacodiscus gamundii Azpeitia Moros, 1911
- Species Aulacodiscus garuschii Christian, 1888
- Species Aulacodiscus gemmatus Barker & Meakin, 1948
- Species Aulacodiscus germanicus (Ehrenberg) ‘A. M. Edwards in Habirshaw' according to De Toni, 1894 accepted as Tripodiscus germanicus Ehrenberg, 1840
- Species Aulacodiscus giganteus
- Species Aulacodiscus gigas ‘Gregory' according to VanLandingham, 1865
- Species Aulacodiscus gigas Greville, 1865
- Species Aulacodiscus glacialis (Grunow) Burke & Woodward, 1965 accepted as Aulacodiscus crux var. glacialis Grunow, 1884
- Species Aulacodiscus gracilis Rattray, 1888
- Species Aulacodiscus grandis Walker in Walker & Chase, 1886
- Species Aulacodiscus granuloprocessus Bone & Gosden, 1968
- Species Aulacodiscus grevilleanus Norman ex Greville, 1864
- Species Aulacodiscus grunowii Cleve
- Species Aulacodiscus gurowii Pantocsek, 1892
- Species Aulacodiscus gutwinskii Pantocsek, 1909
- Species Aulacodiscus habirshawii Pantocsek, 1886
- Species Aulacodiscus hartianus Nelson according to Kitton, 1884
- Species Aulacodiscus haynaldii Pantocsek, 1889
- Species Aulacodiscus heterostictus Barker & Meakin, 1944
- Species Aulacodiscus hirtus Barker & Meakin, 1949
- Species Aulacodiscus hispidus Pantocsek, 1889
- Species Aulacodiscus hungaricus Pantocsek, 1886
- Species Aulacodiscus hustedtii Ross & Sims, 1970
- Species Aulacodiscus huttonii ‘Grunow in litt.' Rattray, 1888
- Species Aulacodiscus hyalinus Pantocsek, 1886
- Species Aulacodiscus hyalinus (Boyer) F.W. Mills, 1920 accepted as Auliscus hyalinus Boyer, 1920
- Species Aulacodiscus hystrix Pantocsek, 1889
- Species Aulacodiscus imperfectus Grunow, 1884
- Species Aulacodiscus impressus Hustedt in Schmidt et al., 1958
- Species Aulacodiscus inflatus A. Schmidt in Schmidt et al., 1876
- Species Aulacodiscus inflexus ‘Greville' according to Tempère & Peragallo
- Species Aulacodiscus insignis Hustedt in Schmidt et al., 1944
- Species Aulacodiscus interruptus Pantocsek, 1889
- Species Aulacodiscus intumescens Rattray, 1888
- Species Aulacodiscus invictus Schmidt in Schmidt et al., 1892
- Species Aulacodiscus italicus Forti in Tempère & Peragallo, 1909
- Species Aulacodiscus italicus Forti, 1913
- Species Aulacodiscus janischii Grove & Sturt, 1887
- Species Aulacodiscus japonicus (Tempère & Brun in Brun & Tempère) Burke & Woodward, 1964 accepted as Aulacodiscus angulatus var. japonica Tempère & Brun in Brun & Tempère, 1889
- Species Aulacodiscus jimboi Pantocsek, 1892
- Species Aulacodiscus johnsonii Arnott ex Ralfs expanded Sims & Holmes, 1983
- Species Aulacodiscus johnsonii Arnott ex Pritchard, 1861
- Species Aulacodiscus johnsonii sensu A. Schmidt in Schmidt et al., 1876
- Species Aulacodiscus jonesianus Greville, 1862
- Species Aulacodiscus jouseae Strelnikova, 1966
- Species Aulacodiscus jucundus Hustedt in Schmidt et al., 1958
- Species Aulacodiscus jutlandicus Kitton, 1871
- Species Aulacodiscus kelleri Pantocsek, 1889
- Species Aulacodiscus kelleri sensu Hustedt in Schmidt et al., 1944
- Species Aulacodiscus kilkellyanus
- Species Aulacodiscus kinkeri A. Schmidt in Schmidt et al., 1886
- Species Aulacodiscus kinkerianus Nott in Walker & Chase, 1886
- Species Aulacodiscus kittonianus according to VanLandingham
- Species Aulacodiscus kittonii Arnott ex Ralfs, 1861
- Species Aulacodiscus kittonii (Janisch) Sims & Holmes, 1983 accepted as Aulacodiscus brightwellii Janisch, 1861
- Species Aulacodiscus klavsenii Schmidt in Schmidt et al., 1896
- Species Aulacodiscus kryshtofovichii A.P.Jousé, 1949
- Species Aulacodiscus labyrinthus Meakin & Brigger, 1949
- Species Aulacodiscus laevis Brightwell, 1860
- Species Aulacodiscus lahusenii O.N.Witt †
- Species Aulacodiscus laxus
- Species Aulacodiscus ledebourii Pantocsek, 1889
- Species Aulacodiscus lefeburei Chenevière, 1934
- Species Aulacodiscus lemardeleyi Chenevière, 1934
- Species Aulacodiscus lindavianus Muschler, 1908
- Species Aulacodiscus longicornis Barker & Meakin, 1948
- Species Aulacodiscus lucidus Rattray, 1888
- Species Aulacodiscus lunyacsekii
- Species Aulacodiscus macraeanus
- Species Aulacodiscus madagascovusis ‘Tempère?' according to Mills
- Species Aulacodiscus mammosus
- Species Aulacodiscus margareticus [Mellor]?, 1920
- Species Aulacodiscus margaritaceus Schmidt, 1876
- Species Aulacodiscus margaritaceus Ralfs in Pritchard, 1861
- Species Aulacodiscus margaritaceus Hanna & Grant, 1926
- Species Aulacodiscus marginatus Ralfs ex Schmidt in Schmidt et al., 1888
- Species Aulacodiscus mastoideus Jousé in Proschkina-Lavrenko, 1949
- Species Aulacodiscus meakinii Woodward & Flint, 1969
- Species Aulacodiscus minimus Hustedt in Schmidt et al., 1958
- Species Aulacodiscus minimus Hustedt ex Simonsen, 1987
- Species Aulacodiscus minutus Rattray, 1888
- Species Aulacodiscus miocenicus Forti, 1908
- Species Aulacodiscus miocenicus Forti, 1909
- Species Aulacodiscus moelleri Grunow, 1876 accepted as Aulacodiscus margaritaceus var. moelleri (Grunow in Schmidt et al.) Rattray, 1888
- Species Aulacodiscus morenoensis Long, Fuge & Smith, 1946
- Species Aulacodiscus muelleri Grunow in Schmidt et al., 1876
- Species Aulacodiscus multispadix Tempère & Brun in Brun & Tempère, 1889
- Species Aulacodiscus neglectus Rattray, 1888
- Species Aulacodiscus neogradensis Pantocsek, 1886
- Species Aulacodiscus nigrescens Pantocsek, 1892
- Species Aulacodiscus nigricans
- Species Aulacodiscus nobilis Rattray, 1889
- Species Aulacodiscus notabilis Pantocsek, 1889
- Species Aulacodiscus notatus Grove & Sturt, 1887
- Species Aulacodiscus novae-seelandiae A. Schmidt in Schmidt et al., 1888
- Species Aulacodiscus nova-zealandicus (Grove & Sturt) Grunow, 1888 accepted as Aulacodiscus sollittianus var. nova-zealandica Grove & Sturt, 1887 †
- Species Aulacodiscus oamaruensis Grunow, 1888
- Species Aulacodiscus orbiculatus Subrahmanyan, 1946
- Species Aulacodiscus oreganus
- Species Aulacodiscus oregonensis Bailey & Harvey, 1862-1874
- Species Aulacodiscus orientalis Greville, 1864
- Species Aulacodiscus pallidus Greville, 1860
- Species Aulacodiscus paradoxus Greville, 1863
- Species Aulacodiscus parvulus Rattray, 1888
- Species Aulacodiscus patens J.Rattray, 1888
- Species Aulacodiscus patulus Grunow in Schmidt et al., 1888
- Species Aulacodiscus pellucidus Greville, 1864
- Species Aulacodiscus peragalloi Pantocsek, 1892
- Species Aulacodiscus permagnus Brun in Schmidt et al., 1892
- Species Aulacodiscus petersii Ehrenberg, 1845
- Species Aulacodiscus petersii sensu A. Schmidt in Schmidt et al., 1876
- Species Aulacodiscus polygonus
- Species Aulacodiscus pretiosus Mann, 1925
- Species Aulacodiscus probabilis Schmidt in Schmidt et al., 1876
- Species Aulacodiscus probabilis Schmidt in Schmidt et al., 1876
- Species Aulacodiscus prominens Kitton manuscript ex Rattray, 1888
- Species Aulacodiscus pugnalis Hanna, 1927
- Species Aulacodiscus pugnalus Hanna, 1927
- Species Aulacodiscus pulcher
- Species Aulacodiscus quadrans Schmidt in Schmidt et al., 1876
- Species Aulacodiscus quinarius Janisch, 1861
- Species Aulacodiscus radiatus (Bailey) Brightwell, 1860 accepted as Eupodiscus radiatus var. radiatus J.W. Bailey, 1851
- Species Aulacodiscus radiatus Greville, 1864
- Species Aulacodiscus radiosus Grove & Sturt, 1887
- Species Aulacodiscus rattrayii
- Species Aulacodiscus rawsonii Barker & Meakin, 1949
- Species Aulacodiscus recedens Mann, 1925
- Species Aulacodiscus rellae Hanna & Grant, 1926
- Species Aulacodiscus reticulatus Pantocsek, 1886
- Species Aulacodiscus rogersii (Ehrenberg) Schmidt, 1886 accepted as Eupodiscus rogersii Ehrenberg, 1844
- Species Aulacodiscus rothii ‘Grove collection ?' according to Mills
- Species Aulacodiscus rotulus Rattray, 1888
- Species Aulacodiscus sagitarrius
- Species Aulacodiscus samoensis ‘Grunow in Möller's Catalogue' according to Mills
- Species Aulacodiscus scaber Ralfs, 1861
- Species Aulacodiscus schmidtii
- Species Aulacodiscus sculptus (W. Smith) Brightwell, 1860 accepted as Eupodiscus sculptus W.Smith, 1853
- Species Aulacodiscus secedens Schmidt in Schmidt et al., 1886
- Species Aulacodiscus sendaiense ‘Tempère, Schmidt et al.' according to Mills, 1933
- Species Aulacodiscus septus Schmidt †
- Species Aulacodiscus sieminskae Geroch, 1978
- Species Aulacodiscus simbirskianus Pantocsek, 1889
- Species Aulacodiscus simplex Rattray, 1888
- Species Aulacodiscus simulans Barker & Meakin, 1946
- Species Aulacodiscus singiliewskyanus Barker & Meakin, 1944
- Species Aulacodiscus sollitianus Norman, 1861 accepted as Aulacodiscus sollittianus G.Norman, 1861
- Species Aulacodiscus sollittianus G.Norman, 1861
- Species Aulacodiscus sparsus Greville, 1866
- Species Aulacodiscus spectabilis sensu Grove & Sturt, 1887
- Species Aulacodiscus splendidus Hustedt in Schmidt et al., 1958
- Species Aulacodiscus squamosus Brun in Schmidt et al., 1891
- Species Aulacodiscus stellaris Barker & Meakin, 1949
- Species Aulacodiscus stelliformis Barker & Meakin, 1947
- Species Aulacodiscus stoeckhartii 'Pantocsek' M. Peragallo, 1897
- Species Aulacodiscus stoschii Janisch in Schmidt et al., 1876
- Species Aulacodiscus stoschii sensu Walker & Chase, 1886
- Species Aulacodiscus striatus Long, Fuge & Smith, 1946
- Species Aulacodiscus sturtianus Kitton (various collection)
- Species Aulacodiscus sturtii Kitton, 1884
- Species Aulacodiscus subangulatus Pantocsek, 1886
- Species Aulacodiscus subexcavatus Hustedt in Schmidt et al., 1944
- Species Aulacodiscus subrimosus Grunow, 1888
- Species Aulacodiscus subsquamosus (Grunow ex Rattray) Burke & Woodward accepted as Aulacodiscus crux var. subsquamosa Grunow manuscript ex Rattray, 1888
- Species Aulacodiscus superbus Kitton, 1873
- Species Aulacodiscus suspectus Schmidt in Schmidt et al., 1876
- Species Aulacodiscus symmetricus Barker & Meakin, 1945
- Species Aulacodiscus szakalensis Pantocsek, 1892
- Species Aulacodiscus tabernaculum Brun, 1895
- Species Aulacodiscus temperei Schmidt, 1890
- Species Aulacodiscus tener (Witt) Hustedt in Schmidt et al., 1958 accepted as Aulacodiscus crux var. tenera Witt, 1885
- Species Aulacodiscus tenuipunctatus Anissimova, 1938
- Species Aulacodiscus tenuis Strelnikova, 1974
- Species Aulacodiscus ternatus Janisch, 1861
- Species Aulacodiscus tetrapurgon Brun, 1896
- Species Aulacodiscus thumii Schmidt in Schmidt et al., 1886
- Species Aulacodiscus tripartitus Tempère & Brun in Brun & Tempère, 1889
- Species Aulacodiscus truanii Pantocsek, 1889
- Species Aulacodiscus tschestnovii Pantocsek, 1889
- Species Aulacodiscus tuberculatus Pantocsek, 1889
- Species Aulacodiscus tubulo-crenatus
- Species Aulacodiscus tumulifer Brun in Schmidt et al., 1891
- Species Aulacodiscus tumulosus Bone & Gosden, 1968
- Species Aulacodiscus umbonatus
- Species Aulacodiscus validus Barker & Meakin, 1947
- Species Aulacodiscus variabilis E.G.Lupikina, 1965 †
- Species Aulacodiscus verrucosus Brun in Brun, Bergon, Cleve, Grove, Pantocsek & Tempère, 1890
- Species Aulacodiscus victoriae Karsten, 1905
- Species Aulacodiscus voluta-coeli Brun in Schmidt et al., 1892
- Species Aulacodiscus weissflogii Pantocsek, 1889
- Species Aulacodiscus wittii Janisch in Schmidt et al., 1886
- Species Aulacodiscus zanoni Chenevière, 1934
- Species Aulacodiscus zonulatus Rattray, 1889
- Genus Tripodiscus C.G. Ehrenberg, 1840
- Family Coscinodiscaceae Kützing, 1844 (76)
- Family Gossleriellaceae Round, 1990
- Family Heliopeltaceae H. L. Smith, 1872 (26)
- 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
