Actinocyclus C.G. Ehrenberg, 1837 (additional source)
Asterolampraceae Smith, 1872 (additional source)
Asterolamprales (additional source)
Asteromphalus C.G. Ehrenberg, 1844 (additional source)
Azpeitia M. Peragallo in J. Tempère & H. Peragallo, 1912 (additional source)
Azpeitia M. Peragallo in J. Tempère & H. Peragallo, 1912 (basis of record)
Bacillariaceae Ehrenberg, 1831 (basis of record)
Bacillariales (basis of record)
Bacillariophyceae (additional source)
Bacillariophyta (additional source)
Biddulphiophycidae accepted as Biddulphianae (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)
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)
Cylindrotheca L. Rabenhorst, 1859 (basis of record)
Dactyliosolen A.F. Castracane, 1886 (additional source)
Diatoma J.B.M. Bory de Saint-Vincent, 1824 (basis of record)
Ditylum J.W. Bailey ex L.W. Bailey, 1861 (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)
Haslea R. Simonsen, 1974 (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)
Lithodesmiaceae Round, 1990 (basis of record)
Lithodesmiales (basis of record)
Melosira C.A. Agardh, 1824 (basis of record)
Melosiraceae Kützing, 1844, sensu emend. (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)
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)
Podosira C.G. Ehrenberg, 1840 (basis of record)
Porosira E. Jorgensen, 1905 (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)
Roperia A. Grunow ex J. Pelletan, 1889 (additional source)
Skeletonema R.K. Greville, 1865 (basis of record)
Skeletonemaceae Lebour, 1930, sensu emend. (basis of record)
Stellarima G.R. Hasle & P.A. Sims, 1986 (basis of record)
Synedra C.G. Ehrenberg, 1830 (basis of record)
Tabularia (F.T. Kutzing) D.M. Williams & F.E. Round, 1986 (additional source)
Thalassionema A. Grunow ex C. Mereschkowsky, 1902 (basis of record)
Thalassionemataceae Round, 1990 (basis of record)
Thalassionematales (basis of record)
Thalassiosira P.T. Cleve, 1873 emend. Hasle, 1973 (additional source)
Thalassiosiraceae Lebour, 1930 (additional source)
Thalassiosirales (additional source)
Triceratiaceae (Schütt) Lemmermann, 1899 (basis of record)
Triceratiales (original description)
Trichotoxon F.M. Reid & F.E. Round, 1988 (additional source)

 Classification

 for Bellerocheaceae Crawford, 1990

There is considerable confusion in the literature concerning the status of these groups and of the exact allocation ... [details]

 Classification

 for Cerataulus smithii Ralfs ex Pritchard, 1861

It is suggested that Cerataulus smithii belongs with other species in the 'reticula' group of Biddulphia which ... [details]

 Classification

 for Leptocylindrales

This group is tentatively placed until further studies can be made. [details]

 Classification

 for Stauropsis A. Meunier, 1910

Uncertain taxonomic position. [details]

 Homonymy

 for Biremis Polloni, Rowe & Teal, 1973

Hemihomonym (name used in two Code jurisdictions). There is also a genus of diatoms named Biremis Mann & Cox, 1990 ... [details]

 Type designation

 for Achnanthepyla Perag., 1921

... [details]