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 (879)
- Kingdom Animalia (681)
- Kingdom Bacteria (5)
- Kingdom Chromista (179)
- Subkingdom Hacrobia (4)
- Subkingdom Harosa (91)
- Phylum Bacillariophyta
- Phylum Heterokontophyta (84)
- Subphylum Bacillariophytina (84)
- Class Bacillariophyceae (84)
- Subclass Bacillariophyceae incertae sedis
- Subclass Bacillariophycidae (22)
- Superorder Bacillariophycanae (19)
- Order Achnanthales (1)
- Order Bacillariales (10)
- Order Naviculales (6)
- Family Diploneidaceae D. G. Mann, 1990
- Family Naviculaceae Kützing, 1844 (1)
- Genus Membraneis T.B.B. Paddock, 1988
- Genus Meuniera P.C. Silva in G.R. Hasle & E.E. Syvertsen, 1996
- Species Meuniera membranacea (Cleve) P.C.Silva, 1996 accepted as Navicula membranacea Cleve, 1897
- Genus Navicula J.B.M. Bory de Saint-Vincent, 1822
- Genus Trachyneis P.T. Cleve, 1894 (1)
- Family Pinnulariaceae D.G. Mann, 1990
- Family Pleurosigmataceae Mereschkowsky, 1903 (4)
- Family Stauroneidaceae D.G. Mann, 1990 (1)
- Order Rhopalodiales
- Order Surirellales (2)
- Superorder Bacillariophycidae incertae sedis (3)
- Subclass Coscinodiscophycidae (57)
- Subclass Fragilariophycidae (5)
- Kingdom Plantae (14)
- Kingdom Protozoa