DiatomBase
Between brackets is the number of accepted extant species
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- Bacillariophyceae (5 958)
- Subclass Bacillariophyceae incertae sedis (189)
- Subclass Bacillariophycidae (4 408)
- Superorder Bacillariophycanae (4 083)
- Order Achnanthales (438)
- Order Bacillariales (357)
- Family Bacillariaceae Ehrenberg, 1831 (352)
- Genus Allonitzschia A. Mann, 1925
- Genus Alveus I. Kaczmarska & G.A. Fryxell, 1996
- Genus Bacillaria J.F. Gmelin, 1788 (3)
- Genus Cylindrotheca L. Rabenhorst, 1859 (2)
- Genus Cymatonitzschia R. Simonsen, 1974
- Genus Cymbellonitzschia F. Hustedt in A. Schmidt et al., 1924 (1)
- Genus Denticula F.T. Kützing, 1844 (6)
- Genus Denticulopsis R. Simonsen, 1979 (1)
- Genus Fragilariopsis F. Hustedt in A. Schmidt et al., 1913 (6)
- Genus Gomphonitzschia A. Grunow, 1868 (1)
- Genus Gomphotheca N.I. Hendey & P.A. Sims, 1982
- Genus Hantzschia A. Grunow, 1877 (28)
- Genus Neodenticula Akiba & Yanagisawa, 1986 †
- Genus Nitschia
- Genus Nitzschia A.H. Hassall, 1845 (241)
- Genus Nitzschiella L. Rabenhorst, 1864
- Genus Ophidocampa C.G. Ehrenberg, 1870
- Genus Perrya F. Kitton, 1874 †
- Genus Psammodictyon D.G. Mann in F.E. Round, R.M. Crawford & D.G. Mann, 1990 (3)
- Genus Pseudoeunotia accepted as Pseudo-eunotia A. Grunow in H. Van Heurck, 1881
- Genus Pseudo-nitschia accepted as Pseudo-nitzschia H. Peragallo in H. Peragallo & M. Peragallo, 1900
- Genus Pseudonitzschia accepted as Pseudo-nitzschia H. Peragallo in H. Peragallo & M. Peragallo, 1900 (1)
- Genus Pseudo-nitzschia H. Peragallo in H. Peragallo & M. Peragallo, 1900 (48)
- Genus Simonsenia H. Lange-Bertalot, 1979 (2)
- Genus Tryblionella W. Smith, 1853 (9)
- Species Tryblionella acuminata W.Smith, 1853
- Species Tryblionella acuta (Cleve) D.G.Mann, 1990 accepted as Nitzschia acuta Cleve, 1878
- Species Tryblionella adducta (Hustedt) D.G.Mann, 1990 accepted as Nitzschia adducta Hustedt, 1955
- Species Tryblionella aerophila (Hustedt) D.G.Mann, 1990 accepted as Nitzschia aerophila Hustedt, 1942
- Species Tryblionella angusta Gregory, 1854
- Species Tryblionella angustata W.Smith, 1853
- Species Tryblionella antiqua Schumann, 1862
- Species Tryblionella apiculata Gregory, 1857
- Species Tryblionella ardua (Cholnoky) D.G.Mann, 1990 accepted as Nitzschia ardua Cholnoky, 1961
- Species Tryblionella balatonis (Grunow) D.G.Mann, 1990 accepted as Nitzschia balatonis Grunow, 1880
- Species Tryblionella bathurstensis (M.H.Giffen) D.G.Mann, 1990 accepted as Nitzschia bathurstensis M.H.Giffen, 1970
- Species Tryblionella bicuneata (Grunow) D.G.Mann, 1990 accepted as Nitzschia bicuneata Grunow, 1880
- Species Tryblionella brightwellii (Kitton) D.G.Mann, 1990 accepted as Nitzschia brightwellii Kitton, 1861
- Species Tryblionella calida (Grunow) D.G.Mann, 1990
- Species Tryblionella campechiana (Grunow) D.G.Mann, 1990 accepted as Nitzschia campechiana Grunow, 1880
- Species Tryblionella chutteri (R.E.M.Archibald) D.G.Mann, 1990 accepted as Nitzschia chutteri Archibald, 1966
- Species Tryblionella circumsuta (Bailey) Ralfs, 1861 accepted as Surirella circumsuta Bailey, 1851
- Species Tryblionella coarctata (Grunow) D.G.Mann, 1990 accepted as Nitzschia coarctata var. coarctata Grunow in Cleve & Möller, 1878
- Species Tryblionella coarctata Peragallo
- Species Tryblionella cocconeiformis (Grunow) D.G.Mann in F.E.Round, R.A.Crawford & D.G.Mann, 1990
- Species Tryblionella compressa (J.W.Bailey) M.Poulin, 1990 accepted as Pyxidicula compressa var. compressa J.W. Bailey, 1851
- Species Tryblionella conformata (Hustedt) D.G.Mann, 1990 accepted as Nitzschia conformata Hustedt, 1952
- Species Tryblionella confusa Bertolli & Torgan, 2019
- Species Tryblionella conspicua Kitton, 1873
- Species Tryblionella constricta Gregory, 1855
- Species Tryblionella constricta (Kützing) Poulin, 1991 accepted as Synedra constricta Kützing, 1844
- Species Tryblionella contracta Schumann, 1862
- Species Tryblionella costata Marsson, 1900
- Species Tryblionella cruciata Playfair, 1915
- Species Tryblionella davidsonii (Grunow & Dickie) D.G.Mann, 1990 accepted as Nitzschia davidsonii Grunow & Dickie, 1880
- Species Tryblionella debilis Arnott ex O'Meara, 1873
- Species Tryblionella didyma (Hustedt) D.G.Mann, 1990 accepted as Nitzschia didyma Hustedt, 1952
- Species Tryblionella diluviana Cleve & Jentzsch, 1882
- Species Tryblionella divergens (Hustedt) D.G.Mann, 1990 accepted as Nitzschia divergens Hustedt, 1952
- Species Tryblionella formica Hantzsch in Rabenhorst, 1863
- Species Tryblionella fossilis J.D. Moller, 1868
- Species Tryblionella gaoana Witkowski & Ch.Li in Witkowski et al., 2016
- Species Tryblionella gracilis W.Smith, 1853
- Species Tryblionella gracilis sensu Schumann, 1862
- Species Tryblionella graeffii (Grunow ex Cleve) D.G.Mann, 1990 accepted as Nitzschia graeffii var. graeffii Grunow in Cleve, 1878
- Species Tryblionella granulata (Grunow) D.G.Mann, 1990 accepted as Nitzschia granulata f. granulata Grunow in Cleve & Möller, 1879
- Species Tryblionella halteriformis (Hustedt) D.G.Mann, 1990 accepted as Nitzschia halteriformis Hustedt, 1952
- Species Tryblionella hantzschiana Grunow, 1862 accepted as Nitzschia tryblionella Hantzsch, 1860
- Species Tryblionella hungarica (Grunow) Frenguelli, 1942 accepted as Nitzschia hungarica f. hungarica Grunow, 1862
- Species Tryblionella hyalina (Amossé) T.Ohtsuka, 2005 accepted as Nitzschia granulata var. hyalina Amossé, 1924
- Species Tryblionella intermedia Grunow in Cleve & Molle, 1878
- Species Tryblionella jelineckii (Grunow) D.G.Mann, 1990 accepted as Nitzschia jelineckii var. jelineckii Grunow, 1863
- Species Tryblionella kuetzingii Ãlvarez-Blanco & S.Blanco, 2014
- Species Tryblionella lanceola Grunow, 1878
- Species Tryblionella lata Witt, 1873 accepted as Psammodictyon panduriforme var. latum (O.N. Witt) Louvrou & Economou-Amilli
- Species Tryblionella levidensis W.Smith, 1856
- Species Tryblionella limicola (Grunow) D.G.Mann, 1990 accepted as Nitzschia limicola Grunow, 1880
- Species Tryblionella littoralis (Grunow) D.G.Mann, 1990 accepted as Nitzschia littoralis var. littoralis Grunow in Cleve & Grunow, 1880
- Species Tryblionella magnacarina (M.H.Hohn & J.Hellerman) D.G.Mann, 1990 accepted as Nitzschia magnacarina M.H.Hohn & J.Hellerman, 1966
- Species Tryblionella marginata W.Smith, 1853
- Species Tryblionella marginulata (Grunow) D.G.Mann, 1990 accepted as Nitzschia marginulata f. marginulata Grunow in Cleve & Möller, 1878
- Species Tryblionella minor W. Smith, 1859
- Species Tryblionella navicularis (Brébisson) Ralfs, 1861 accepted as Surirella navicularis Brébisson, 1849
- Species Tryblionella neptunii Schumann, 1867
- Species Tryblionella nicobarica (Grunow) D.G.Mann, 1990 accepted as Nitzschia panduriformis var. nicobarica Grunow, 1868
- Species Tryblionella novaehollandiae J.D. Moller, 1883
- Species Tryblionella nova-zeelandiae Grunow
- Species Tryblionella obscurepunctata (Hustedt) D.G.Mann, 1990 accepted as Nitzschia obscurepunctata Hustedt, 1987
- Species Tryblionella ornata Bertolli, Talgatti & Torgan, 2019
- Species Tryblionella ovata Lagerstedt, 1873
- Species Tryblionella panduriformis
- Species Tryblionella partita (Hustedt) D.G.Mann, 1990 accepted as Nitzschia partita Hustedt, 1952
- Species Tryblionella peisonis Pantocsek, 1912
- Species Tryblionella peruana Cleve
- Species Tryblionella perversa (Grunow) D.G.Mann, 1990 accepted as Nitzschia perversa Grunow, 1880
- Species Tryblionella plana (W.Smith) Pelletan, 1889 accepted as Nitzschia plana f. plana W. Smith, 1853
- Species Tryblionella plicatula (Hustedt) D.G.Mann, 1990 accepted as Nitzschia plicatula Hustedt, 1953
- Species Tryblionella ponciensis (R.Hagelstein) D.G.Mann, 1990 accepted as Nitzschia ponciensis R.Hagelstein, 1938
- Species Tryblionella princeps (Hanna & Grant) D.G.Mann, 1990 accepted as Nitzschia princeps Hanna & Grant, 1926
- Species Tryblionella producta Bischoff, 1922
- Species Tryblionella pseudohungarica (Hustedt) D.G.Mann, 1990 accepted as Nitzschia pseudohungarica Hustedt, 1939
- Species Tryblionella punctata W.Smith, 1853
- Variety Tryblionella punctata var. aralensis Borscow, 1877
- Variety Tryblionella punctata var. coarcta (Grunow) Diog-Ramos
- Variety Tryblionella punctata var. coarctata (Grunow in Cleve & Möller) Pelletan, 1889 accepted as Nitzschia coarctata var. coarctata Grunow in Cleve & Möller, 1878
- Variety Tryblionella punctata var. constricta Grunow, 1862
- Variety Tryblionella punctata var. constricta Rabenhorst, 1864
- Variety Tryblionella punctata var. curta Grunow, 1862
- Variety Tryblionella punctata var. elongata Grunow, 1862
- Variety Tryblionella punctata var. genuina Derjudin, 1928
- Variety Tryblionella punctata var. protracta Frenguelli, 1945
- Forma Tryblionella punctata f. abbreviata Rabenhorst, 1864
- Forma Tryblionella punctata f. paucistriata Frenguelli, 1945
- Forma Tryblionella punctata f. punctata W. Smith, 1853
- Species Tryblionella querandina Frenguelli, 1938
- Species Tryblionella rabenhorstii (Grunow) D.G.Mann, 1990 accepted as Nitzschia rabenhorstii Grunow, 1880
- Species Tryblionella rustica Frenguelli, 1953
- Species Tryblionella salinarum (Grunow) Pantocsek, 1901 accepted as Nitzschia tryblionella var. salinarum Grunow in Cleve & Grunow, 1880
- Species Tryblionella salvadoriana (Hustedt) D.G.Mann, 1990 accepted as Nitzschia salvadoriana Hustedt, 1952
- Species Tryblionella sauteriana Grunow in litt.
- Species Tryblionella scalaris (Ehrenberg) P.Siver & P.B.Hamilton, 2005 accepted as Synedra scalaris Ehrenberg, 1843
- Species Tryblionella scutellum W.Smith, 1853
- Species Tryblionella sibula (M.H.Giffen) D.G.Mann, 1990 accepted as Nitzschia sibula M.H.Giffen, 1973
- Species Tryblionella soleaeformis W. Smith
- Species Tryblionella subsalina O'Meara, 1872
- Species Tryblionella sulcata (Grunow) D.G.Mann, 1990 accepted as Nitzschia sulcata Grunow, 1880
- Species Tryblionella tiltilensis Frenguelli, 1949 †
- Species Tryblionella tryblionella (Hantzsch) Prochazka, 1923 accepted as Nitzschia tryblionella Hantzsch, 1860
- Species Tryblionella tryblionella Skvortzow, 1929
- Species Tryblionella umbilicata (Hustedt) D.G.Mann, 1990 accepted as Nitzschia umbilicata Hustedt, 1949
- Species Tryblionella victoriae Grunow, 1862
- Species Tryblionella visurgis (Hustedt) D.G.Mann, 1990 accepted as Nitzschia visurgis Hustedt, 1957
- Species Tryblionella zebuana (A.Mann) D.G.Mann, 1990 accepted as Nitzschia zebuana A.Mann, 1925
- Family Bacillariales incertae sedis (5)
- Family Nitzschiaceae accepted as Bacillariaceae Ehrenberg, 1831
- Order Cymbellales (792)
- 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 (878)
- Subclass Fragilariophycidae (483)
- Order Centrales
