Achnanthaceae Kützing, 1844 (basis of record)
Achnanthales (basis of record)
Achnanthes Bory, 1822 (basis of record)
Actinocyclus C.G. Ehrenberg, 1837 (additional source)
Amphipleuraceae Grunow, 1862 (basis of record)
Amphora C.G. Ehrenberg ex F.T. Kützing, 1844 (basis of record)
Asterionella A.H. Hassall, 1850 (additional source)
Asterionellopsis F.E. Round in F.E. Round, R.M. Crawford & D.G. Mann, 1990 (basis of record)
Asterolampraceae Smith, 1872 (additional source)
Asterolamprales (additional source)
Asteromphalus C.G. Ehrenberg, 1844 (additional source)
Attheya T. West, 1860 (basis of record)
Attheyaceae Round & R. M. Crawford (additional source)
Bacillaria J.F. Gmelin, 1788 (basis of record)
Bacillariaceae Ehrenberg, 1831 (basis of record)
Bacillariales (basis of record)
Bacillariophyceae (additional source)
Bacillariophyta (additional source)
Bacteriastrum G. Shadbolt, 1854 (basis of record)
Biddulphia S.F. Gray, 1821 (additional source)
Biddulphiaceae Kützing, 1844 (basis of record)
Biddulphiales (basis of record)
Biddulphiophycidae accepted as Biddulphianae (basis of record)
Catenulaceae Mereschkowsky, 1902 (basis of record)
Chaetoceros C.G. Ehrenberg, 1844 (basis of record)
Chaetocerotaceae Ralfs, 1861 (basis of record)
Cocconeidaceae Kützing, 1844 (basis of record)
Cocconeis C.G. Ehrenberg, 1837 (basis of record)
Corethraceae Lebour, 1930 (basis of record)
Corethrales (basis of record)
Corethron A.F. Castracane, 1886 (basis of record)
Coscinodiscaceae Kützing, 1844 (basis of record)
Coscinodiscales (basis of record)
Coscinodiscophycidae (basis of record)
Coscinodiscus C.G. Ehrenberg, 1839 (additional source)
Cyclostephanos F.E. Round ex Theriot, Hakansson, Kociolek, Round & Stoermer, 1987 (additional source)
Cyclotella (F.T. Kützing) A. de Brébisson, 1838 (additional source)
Cylindrotheca L. Rabenhorst, 1859 (basis of record)
Cymbellaceae Greville, 1833 (basis of record)
Cymbellales (additional source)
Detonula F. Schütt ex G.B. De Toni, 1894 (basis of record)
Diatoma J.B.M. Bory de Saint-Vincent, 1824 (basis of record)
Didymosphenia M. Schmidt in A. Schmidt et al., 1899 (additional source)
Ditylum J.W. Bailey ex L.W. Bailey, 1861 (additional source)
Ethmodiscaceae Round (additional source)
Ethmodiscales (additional source)
Ethmodiscus A.F. Castracane, 1886 (additional source)
Eucampia C.G. Ehrenberg, 1839 (additional source)
Eupodiscales accepted as Triceratiales (basis of record)
Eupodiscus J.W. Bailey, 1851 (additional source)
Fragilaria H.C. Lyngbye, 1819 (additional source)
Fragilariaceae Greville, 1833 (basis of record)
Fragilariales (basis of record)
Fragilariophycidae (basis of record)
Fragilariopsis F. Hustedt in A. Schmidt et al., 1913 (additional source)
Frustulia L. Rabenhorst, 1853 (additional source)
Gomphonemataceae Kützing, 1844 (basis of record)
Guinardia H. Peragallo, 1892 (additional source)
Gyrosigma A.H. Hassall, 1845 (additional source)
Hemiaulaceae Heiberg, 1863 (basis of record)
Hemiaulales (basis of record)
Hemiaulus P.A.C. Heiberg, 1863 (additional source)
Hemidiscaceae Hendey, 1937 emend Simonsen, 1975 (basis of record)
Lauderia P.T. Cleve, 1873 (basis of record)
Lauderiaceae (Schütt) Lemmermann, 1899, sensu emend. (basis of record)
Leptocylindraceae Lebour, 1930 (basis of record)
Leptocylindrales (basis of record)
Leptocylindrus P.T. Cleve in C.G.J. Petersen, 1889 (additional source)
Lithodesmiaceae Round, 1990 (basis of record)
Lithodesmiales (basis of record)
Melosirales (basis of record)
Navicula J.B.M. Bory de Saint-Vincent, 1822 (additional source)
Naviculaceae Kützing, 1844 (basis of record)
Naviculales (basis of record)
Nitzschia A.H. Hassall, 1845 (basis of record)
Odontella C.A. Agardh, 1832 (basis of record)
Paralia P.A.C. Heiberg, 1863 (additional source)
Paraliaceae Crawford, 1988 (basis of record)
Paraliales (basis of record)
Pinnularia C.G. Ehrenberg, 1843 (basis of record)
Pinnulariaceae D.G. Mann, 1990 (basis of record)
Pleurosigma W. Smith, 1852 (basis of record)
Pleurosigmataceae Mereschkowsky, 1903 (basis of record)
Pleurosira (G. Meneghini) V.B.A. Trevisan di San Leon, 1848 (basis of record)
Proboscia Bo G. Sundström, 1986 (additional source)
Pseudosolenia B.G. Sundstrom, 1986 (additional source)
Rhizosolenia T. Brightwell, 1858 (additional source)
Rhizosoleniaceae De Toni, 1890 (basis of record)
Rhizosoleniales (basis of record)
Skeletonema R.K. Greville, 1865 (basis of record)
Skeletonemaceae Lebour, 1930, sensu emend. (basis of record)
Staurosirella D.M. Williams & F.E. Round, 1987 (additional source)
Stephanodiscaceae Glezer & Makarova, 1986 (additional source)
Stephanodiscus C.G. Ehrenberg, 1845 (basis of record)
Stephanopyxidaceae Nikolaev (basis of record)
Stephanopyxis (C.G. Ehrenberg) C.G. Ehrenberg, 1845 (additional source)
Synedra C.G. Ehrenberg, 1830 (basis of record)
Thalassionema A. Grunow ex C. Mereschkowsky, 1902 (basis of record)
Thalassionemataceae Round, 1990 (basis of record)
Thalassionematales (basis of record)