Achnanthes brevipes C.Agardh, 1824 (additional source)
Acropisthiidae Foissner & Foissner, 1988 (basis of record)
Actinocyclus divisus (Grunow) Hustedt, 1958 accepted as Coscinodiscus divisus var. divisus Grunow, 1878 (basis of record)
Actinocyclus octonarius Ehrenberg, 1837 accepted as Actinoptychus octonarius (Ehrenberg) Kützing, 1844 accepted as Actinocyclus octonarius var. octonarius Ehrenberg, 1837 (additional source)
Actinoptychus senarius (Ehrenberg) Ehrenberg, 1843 accepted as Actinocyclus senarius Ehrenberg, 1838 (additional source)
Aegyriana Song & Wilbert, 2002 (basis of record)
Alexandrium tamarense (Lebour) Balech, 1995 (additional source)
Asteromphalus C.G. Ehrenberg, 1844 (additional source)
Asteromphalus heptactis (Brébisson) Ralfs, 1861 (additional source)
Azpeitia nodulifera (A.W.F.Schmidt) G.A.Fryxell & P.A.Sims, 1986 (additional source)
Berkeleya rutilans (Trentepohl ex Roth) Grunow, 1880 (additional source)
Calcidiscaceae J.R.Young & Bown, 1997 (basis of record)
Ceratium extensum (Gourret) Cleve-Euler, 1900 accepted as Tripos extensus (Gourret) F.Gómez, 2013 (additional source)
Ceratium fusus (Ehrenberg) Dujardin, 1841 accepted as Tripos fusus (Ehrenberg) F.Gómez, 2013 (additional source)
Ceratium lineatum (Ehrenberg) Cleve, 1899 accepted as Tripos lineatus (Ehrenberg) F.Gómez, 2013 (additional source)
Ceratium pentagonum Gourret, 1883 accepted as Tripos pentagonus (Gourret) F.Gómez, 2013 (additional source)
Ceratium tripos (O.F.Müller) Nitzsch, 1817 accepted as Tripos muelleri Bory de Saint-Vincent, 1826 (additional source)
Chaenea Quennerstedt, 1867 (basis of record)
Chaenea teres (Dujardin, 1841) Kent, 1881 (basis of record)
Chaetoceros aequatorialis Cleve, 1873 (basis of record)
Chaetoceros atlanticus Cleve, 1873 (additional source)
Chaetoceros brevis F.Schütt, 1895 (additional source)
Chaetoceros castracanei Karsten, 1905 (basis of record)
Chaetoceros convolutus Castracane, 1886 (additional source)
Chaetoceros curvisetus Cleve, 1889 (additional source)
Chaetoceros debilis Cleve, 1894 emend Xu, Y.Li & Lundholm in Xu et al., 2020 (additional source)
Chaetoceros dichaeta Ehrenberg, 1844 (additional source)
Chaetoceros laciniosus F.Schütt, 1895 (additional source)
Chaetoceros pendulus Karsten, 1905 (additional source)
Chaetoceros peruvianus Brightwell, 1856 (additional source)
Chaetoceros radicans F.Schütt, 1895 (additional source)
Chaetoceros socialis H.S.Lauder, 1864 (additional source)
Chaetoceros tortissimus Gran, 1900 (additional source)
Chlamydodontida (basis of record)
Chlamydonella Petz, Song & Wilbert, 1995 (basis of record)
Chlamydonella pseudochilodon Deroux, 1970 (basis of record)
Choreotrichida (basis of record)
Chrysochromulina hirta Manton, 1978 accepted as Haptolina hirta (Manton) Edvardsen & Eikrem, 2011 (additional source)
Cocconeis fasciolata (Ehrenberg) N.E.Brown, 1920 accepted as Rhaphoneis fasciolata var. fasciolata Ehrenberg, 1844 (basis of record)
Codonellopsis morchella (Cleve) Jörgensen, 1924 (additional source)
Conchacineta Jankowski, 1978 (basis of record)
Corethron pennatum (Grunow) Ostenfeld, 1909 (basis of record)
Coscinodiscus asteromphalus Ehrenberg, 1844 (additional source)
Coscinodiscus centralis Ehrenberg, 1844 (additional source)
Coscinodiscus marginatus Ehrenberg, 1844 (additional source)
Coscinodiscus oculus-iridis (Ehrenberg) Ehrenberg, 1840 (basis of record)
Coscinodiscus radiatus Ehrenberg, 1840 (additional source)
Coscinodiscus subtilis Ehrenberg, 1841 (additional source)
Cothurnia Ehrenberg, 1831 (basis of record)
Cryptochilidae Berger in Corliss, 1979 (basis of record)
Cyclidium varibonneti Song, 2000 (basis of record)
Cyclotrichium Meunier, 1910 (basis of record)
Cylindrotheca closterium (Ehrenberg) Reimann & J.C.Lewin, 1964 (additional source)
Dadayiella ganymedes (Entz, 1884) Kofoid & Campbell, 1929 (additional source)
Dictyocha fibula Ehrenberg, 1839 † (additional source)
Didinium Stein, 1859 (basis of record)
Didinium gargantua Meunier, 1910 (basis of record)
Dinophysis ovum Schütt, 1895 sensu Martin, 1929 accepted as Dinophysis fortii Pavillard, 1924 (additional source)
Diophrys appendiculata (Ehrenberg, 1838) Schewiakoff, 1893 (basis of record)
Diophrys oligothrix Borror, 1965 (basis of record)
Diophrys scutum (Dujardin, 1841) Kahl, 1932 (additional source)
Diplopsalis lenticula Bergh, 1882 (additional source)
Emiliania W.W.Hay & H.P.Mohler, 1967 (additional source)
Emiliania huxleyi (Lohmann) W.W.Hay & H.Mohler, 1967 accepted as Gephyrocapsa huxleyi (Lohmann) P.Reinhardt, 1972 (additional source)
Euplotes rariseta Curds, West & Dorahy, 1974 (basis of record)
Euplotida (basis of record)
Exogenida (basis of record)
Folliculina Lamarck, 1816 (basis of record)
Folliculina ampulla O.F. Müller, 1773 (basis of record)
Fragilariopsis cylindrus (Grunow) Krieger, 1954 (additional source)
Fragilariopsis kerguelensis (O'Meara) Hustedt, 1952 accepted as Terebraria kerguelensis E.O'Meara, 1876 † (basis of record)
Fragilariopsis rhombica (O'Meara) Hustedt, 1952 accepted as Diatoma rhombica E.O'Meara, 1877 (basis of record)
Gastrocirrhidae Fauré-Fremiet, 1961 (basis of record)
Gephyrocapsa ericsonii McIntyre & Bé, 1967 (additional source)
Gephyrocapsa oceanica Kamptner, 1943 (additional source)
Guinardia cylindrus (Cleve) Hasle, 1996 accepted as Rhizosolenia cylindrus Cleve, 1897 (additional source)
Helicosphaera carteri var. carteri (basis of record)
Hemidiscus cuneiformis Wallich, 1860 (additional source)
Kentrophyllum Petz, Song & Wilbert, 1995 (basis of record)
Lauderia annulata Cleve, 1873 (additional source)
Leptocylindrus danicus Cleve, 1889 (additional source)
Leptocylindrus mediterraneus (H.Peragallo) Hasle, 1975 accepted as Lauderia mediterranea H.Peragallo, 1888 (additional source)
Litonotidae Kent, 1882 (basis of record)
Loxophyllum rostratum Cohn, 1866 (basis of record)
Lynchellidae Jankowksi, 1968 (basis of record)
Mesodinium pulex Claparède & Lachmann, 1858 (additional source)
Mesoporos perforatus (Gran) Lillick, 1937 (additional source)
Metanophrys de Puytorac, Grolière, Roque & Detcheva, 1974 (basis of record)
Metaurostylopsis Song, Petz & Warren, 2001 (basis of record)
Neogloboquadrina pachyderma (Ehrenberg, 1861) (additional source)
Nitzschia acicularis (Kützing) W.Smith, 1853 (additional source)
Nitzschia bicapitata Cleve, 1901 (basis of record)
Nitzschia longissima (Brébisson) Ralfs, 1861 (additional source)
Odontella aurita (Lyngbye) C.Agardh, 1832 (additional source)
Orchitophryidae Cépède, 1910 (basis of record)
Orthodonellidae Jankowksi, 1968 (basis of record)
Philasterida (basis of record)
Philasteridae Kahl, 1931 (basis of record)
Phyllopharyngea (basis of record)
Placidae Small & Lynn, 1985 (basis of record)