DiatomBase
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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- Bacillariophyceae (5 957)
- Subclass Bacillariophyceae incertae sedis (189)
- Subclass Bacillariophycidae (4 408)
- Superorder Bacillariophycanae (4 083)
- Order Achnanthales (438)
- Order Bacillariales (357)
- Order Cymbellales (792)
- Family Anomoeoneidaceae D.G. Mann, 1990 (16)
- Family Cymbellaceae Greville, 1833 (423)
- Family Cymbellales incertae sedis (3)
- Family Gomphonemataceae Kützing, 1844 (320)
- Family Rhoicospheniaceae Chen & Zhu, 1983 (30)
- Genus Campylopyxis L.K. Medlin, 1985
- Genus Cuneolus M.H. Giffen, 1970
- Genus Gomphonemopsis L. Medlin in L. Medlin & F.E. Round, 1986 (2)
- Genus Gomphoseptatum L. Medlin in L. Medlin & F.E. Round, 1986
- Species Gomphoseptatum aestuarii (Cleve) Medlin in Medlin & Round, 1986 accepted as Gomphonema aestuarii Cleve, 1893
- Species Gomphoseptatum pseudoseptatum (Giffen) A. Witkowski, H. Lange-Bertalot & D. Metzeltin, 2000 accepted as Gomphonema pseudoseptatum Giffen, 1970
- Genus Gomphosphenia H. Lange-Bertalot, 1995 (15)
- Genus Rhoicosphenia A. Grunow, 1860 (13)
- Order Dictyoneidales
- Order Lyrellales (15)
- Order Mastogloiales (88)
- Order Naviculales (2 077)
- Order Rhopalodiales (37)
- Order Surirellales (174)
- Order Thalassiophysales (105)
- Superorder Bacillariophycidae incertae sedis (32)
- Superorder Eunotiophycanae (293)
- Subclass Coscinodiscophycidae (877)
- Subclass Fragilariophycidae (483)
- Order Centrales
