Achnanthaceae Kützing, 1844 (basis of record)
Achnanthales (basis of record)
Achnanthes Bory, 1822 (basis of record)
Achnanthidiaceae D.G. Mann, 1990 (basis of record)
Achnanthidium F.T. Kützing, 1844 (basis of record)
Actinocyclus C.G. Ehrenberg, 1837 (additional source)
Actinoptychus C.G. Ehrenberg, 1843 (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)
Aulacoseira G.H.K. Thwaites, 1848 (additional source)
Aulacoseiraceae Crawford (additional source)
Aulacoseirales (basis of record)
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)
Bellerochea H. Van Heurck, 1885 (additional source)
Bellerocheaceae Crawford, 1990 (basis of record)
Berkeleyaceae Mann (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)
Campylodiscus C.G. Ehrenberg ex F.T. Kützing, 1844 (additional source)
Catenulaceae Mereschkowsky, 1902 (basis of record)
Cerataulina H. Peragallo ex F. Schütt in Engler & Prantl, 1896 (additional source)
Cerataulus Ehrenberg, 1844 (additional source)
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)
Cyclotella (F.T. Kützing) A. de Brébisson, 1838 (additional source)
Cylindrotheca L. Rabenhorst, 1859 (basis of record)
Cymatopleura W. Smith, 1851 (basis of record)
Cymatosiraceae Hasle, von Stosch & Syvertsen, 1983 (basis of record)
Cymatosirales (basis of record)
Cymbella C.A. Agardh, 1830 (additional source)
Cymbellaceae Greville, 1833 (basis of record)
Cymbellales (additional source)
Dactyliosolen A.F. Castracane, 1886 (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)
Diploneidaceae D. G. Mann, 1990 (basis of record)
Diploneis (C. G. Ehrenberg) P.T. Cleve, 1894 (basis of record)
Ditylum J.W. Bailey ex L.W. Bailey, 1861 (additional source)
Entomoneidaceae Reimer, 1975 (basis of record)
Entomoneis Ehrenberg, 1845 (additional source)
Epithemia F.T. Kützing, 1844 (additional source)
Eucampia C.G. Ehrenberg, 1839 (additional source)
Eunotia C.G. Ehrenberg, 1837 (basis of record)
Eunotiaceae Kützing, 1844 (basis of record)
Eunotiales (basis of record)
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)
Frustulia L. Rabenhorst, 1853 (additional source)
Grammatophora C.G. Ehrenberg, 1840 (additional source)
Guinardia H. Peragallo, 1892 (additional source)
Gyrosigma A.H. Hassall, 1845 (additional source)
Heliopeltaceae H. L. Smith, 1872 (basis of record)
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)
Hyalodiscaceae Crawford, 1990 (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)
Licmophora C.A. Agardh, 1827 (additional source)
Licmophoraceae Kützing, 1844 (additional source)
Licmophorales (additional source)
Lithodesmiaceae Round, 1990 (basis of record)
Lithodesmiales (basis of record)
Lyrellales (basis of record)
Mastogloia G.H.K. Thwaites in W. Smith, 1856 (additional source)
Mastogloiaceae (additional source)
Mastogloiales (additional source)
Melosira C.A. Agardh, 1824 (basis of record)
Melosiraceae Kützing, 1844, sensu emend. (basis of record)
Melosirales (basis of record)
Minidiscus G.R. Hasle, 1973 emend Park in Park et al., 2017 (basis of record)