Between brackets is the number of accepted extant species
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Shows the number of accepted extant species within the taxon
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- Biota (12 689)
- Kingdom Animalia (9 795)
- Kingdom Archaea (1)
- Kingdom Bacteria (310)
- Kingdom Chromista (956)
- Subkingdom Chromobiota
- Subkingdom Cryptista accepted as Cryptophyta
- Subkingdom Hacrobia (58)
- Subkingdom Harosa (627)
- Phylum Bacillariophyta
- Phylum Heterokontophyta (271)
- Subphylum Bacillariophytina (271)
- Class Bacillariophyceae (271)
- Subclass Bacillariophyceae incertae sedis (2)
- Subclass Bacillariophycidae (168)
- Subclass Coscinodiscophycidae (67)
- Superorder Biddulphianae (2)
- Superorder Chaetocerotanae (15)
- Superorder Corethranae (1)
- Superorder Coscinodiscanae (25)
- Superorder Cymatosirophycanae
- Superorder Lithodesmiophycanae
- Superorder Rhizosolenianae (7)
- Superorder Thalassiosiranae (17)
- Order Thalassiosirales (17)
- Family Lauderiaceae (Schütt) Lemmermann, 1899, sensu emend.
- Family Stephanodiscaceae Glezer & Makarova, 1986 (11)
- Genus Cyclostephanos F.E. Round ex Theriot, Hakansson, Kociolek, Round & Stoermer, 1987
- Genus Cyclotella (F.T. Kützing) A. de Brébisson, 1838 (4)
- Species Cyclotella bodanica Eulenstein ex Grunow, 1878 accepted as Lindavia bodanica (Eulenstein ex Grunow) Nakov et al., 2015
- Species Cyclotella comta (Ehrenberg) Kützing, 1849
- Variety Cyclotella comta var. melosiroides Kirchner in Schröter & Kirchner, 1896
- Variety Cyclotella comta var. oligactis (Ehrenberg) Grunow in Van Heurck, 1882 accepted as Discoplea oligactis Ehrenberg, 1854
- Variety Cyclotella comta var. radiosa Grunow, 1882 accepted as Cyclotella radiosa (Grunow) Lemmermann, 1900
- Variety Cyclotella comta var. radiosa Grunow in Van Heurck, 1882
- Species Cyclotella comta Fricke in Schmidt et al., 1900
- Species Cyclotella dubia Fricke, 1900 accepted as Cyclostephanos dubius (Hustedt) Round, 1988
- Species Cyclotella glomerata H.Bachmann, 1911
- Species Cyclotella graeca (Kützing) Ralfs accepted as Lindavia graeca (Ehrenberg) Nakov et al., 2015
- Species Cyclotella kuetzingiana W. Smith, 1853
- Species Cyclotella melosiroides (Kirchner) Lemmermann, 1900 accepted as Cyclotella comta var. melosiroides Kirchner in Schröter & Kirchner, 1896
- Species Cyclotella meneghiniana Kützing, 1844
- Species Cyclotella ocellata Pantocsek, 1901 accepted as Pantocsekiella ocellata (Pantocsek, 1901) K.T. Kiss & Ács, 2016
- Species Cyclotella operculata (C.Agardh) Brébisson, 1838 accepted as Frustulia operculata C.Agardh, 1827
- Species Cyclotella operculata [sensu] Hantzsch in Rabenhorst, 1861-1879
- Species Cyclotella pseudostelligera Hustedt, 1939
- Species Cyclotella punctata W.Smith, 1856
- Species Cyclotella radiosa (Grunow) Lemmermann, 1900 accepted as Cyclotella comta var. radiosa Grunow in Van Heurck, 1882
- Species Cyclotella rectangula Brébisson ex Rabenhorst, 1853
- Species Cyclotella rossii Håkansson, 1990 accepted as Pantocsekiella rossii (Håkansson) K.T. Kiss & Ács, 2016
- Species Cyclotella stelligera Cleve & Grunow, 1882
- Species Cyclotella striata (Kützing) Grunow, 1880
- Species Cyclotella striata sensu auct. e. p. according to Hustedt, 1928
- Genus Lindavia (F. Schütt) G.B. De Toni & A. Forti, 1900 (3)
- Genus Pantocsekiella K.T. Kiss & Ács, 2016 (2)
- Genus Stephanodiscus C.G. Ehrenberg, 1845 (2)
- Family Thalassiosiraceae Lebour, 1930 (6)
- Subclass Fragilariophycidae (34)
- Phylum Xanthophyta accepted as Xanthophyceae
- Kingdom Fungi (740)
- Kingdom Plantae (822)
- Kingdom Protozoa (65)
