Coscinosira oestrupii Ostenfeld, 1900 represented as Shionodiscus oestrupii (Ostenfeld) A.J.Alverson, S.H.Kang & E.C.Theriot, 2006
Coscinosira poroseriata Ramsfjell, 1959 (uncertain > unassessed )
Cyclostephanos dubius (Hustedt) Round, 1988 accepted as Cyclotella dubia var. dubia Fricke in Schmidt et al., 1900
Cyclotella bodanica Eulenstein ex Grunow, 1878 accepted as Lindavia bodanica (Eulenstein ex Grunow) Nakov et al., 2015
Cyclotella comta (Ehrenberg) Kützing, 1849
Cyclotella comta Fricke in Schmidt et al., 1900 (uncertain > unassessed )
Cyclotella comta var. melosiroides Kirchner in Schröter & Kirchner, 1896 (uncertain > unassessed )
Cyclotella comta var. oligactis (Ehrenberg) Grunow in Van Heurck, 1882 accepted as Discoplea oligactis Ehrenberg, 1854
Cyclotella comta var. radiosa Grunow in Van Heurck, 1882 (uncertain > unassessed )
Cyclotella comta var. radiosa Grunow, 1882 accepted as Cyclotella radiosa (Grunow) Lemmermann, 1900 accepted as Cyclotella comta var. radiosa Grunow in Van Heurck, 1882
Cyclotella dubia Fricke, 1900 accepted as Cyclostephanos dubius (Hustedt) Round, 1988 accepted as Cyclotella dubia var. dubia Fricke in Schmidt et al., 1900
Cyclotella dubia var. dubia Fricke in Schmidt et al., 1900 (uncertain > unassessed )
Cyclotella glomerata H.Bachmann, 1911 (uncertain > unassessed )
Cyclotella graeca (Kützing) Ralfs accepted as Lindavia graeca (Ehrenberg) Nakov et al., 2015
Cyclotella graeca var. stelligera Ehrenberg, 1882 (uncertain > unassessed )
Cyclotella kuetzingiana W. Smith, 1853 (uncertain > unassessed )
Cyclotella melosiroides (Kirchner) Lemmermann, 1900 accepted as Cyclotella comta var. melosiroides Kirchner in Schröter & Kirchner, 1896
Cyclotella meneghiniana Kützing, 1844
Cyclotella meneghiniana var. rectangulata Brebisson in Pritchard Grunow in Van Heurck, 1882 accepted as Cyclotella rectangula Brébisson ex Rabenhorst, 1853
Cyclotella ocellata Pantocsek, 1901 accepted as Pantocsekiella ocellata (Pantocsek, 1901) K.T. Kiss & Ács, 2016
Cyclotella operculata (C.Agardh) Brébisson, 1838 accepted as Frustulia operculata C.Agardh, 1827 accepted as Epithemia operculata (C.Agardh) Ruck & Nakov
Cyclotella operculata [sensu] Hantzsch in Rabenhorst, 1861-1879 (uncertain > unassessed )
Cyclotella pseudostelligera Hustedt, 1939 (uncertain > unassessed )
Cyclotella punctata W.Smith, 1856 (uncertain > unassessed )
Cyclotella radiosa (Grunow) Lemmermann, 1900 accepted as Cyclotella comta var. radiosa Grunow in Van Heurck, 1882
Cyclotella rectangula Brébisson ex Rabenhorst, 1853 (uncertain > unassessed )
Cyclotella rossii Håkansson, 1990 accepted as Pantocsekiella rossii (Håkansson) K.T. Kiss & Ács, 2016
Cyclotella stelligera Cleve & Grunow, 1882
Cyclotella striata (Kützing) Grunow, 1880
Cyclotella striata sensu auct. e. p. according to Hustedt, 1928 (uncertain > unassessed )
Lauderia annulata Cleve, 1873 (uncertain > unassessed )
Lauderia mediterranea H.Peragallo, 1888 (uncertain > unassessed )
Lindavia bodanica (Eulenstein ex Grunow) Nakov et al., 2015
Lindavia graeca (Ehrenberg) Nakov et al., 2015
Lindavia ocellata (Pantocsek) Nakov et al., 2015 accepted as Pantocsekiella ocellata (Pantocsek, 1901) K.T. Kiss & Ács, 2016
Lindavia rossii (Håkansson) Nakov et al., 2015
Pantocsekiella ocellata (Pantocsek, 1901) K.T. Kiss & Ács, 2016
Pantocsekiella rossii (Håkansson) K.T. Kiss & Ács, 2016
Planktoniella sol (C.G.Wallich) Schütt, 1892 accepted as Coscinodiscus sol C.G.Wallich, 1860
Porosira dichotomica O.G.Kozlova, 1962 (uncertain > unassessed )
Porosira glacialis (Grunow) Jörgensen, 1905 (uncertain > unassessed )
Porosira pseudodenticulata (Hustedt) Jousé, 1962 accepted as Coscinodiscus pseudodenticulatus Hustedt, 1958
Shionodiscus gracilis (Karsten) A.J. Alverson, S.H. Kang & E.C. Theriot, 2006 accepted as Coscinodiscus gracilis Karsten, 1905
Shionodiscus gracilis var. expectus (VanLandingham) A.J.Alverson; S.H.Kang & E.C.Theriot, 2006 accepted as Thalassiosira expecta VanLandingham, 1978
Shionodiscus oestrupii (Ostenfeld) A.J.Alverson, S.H.Kang & E.C.Theriot, 2006
Shionodiscus perpusillus (O.G.Kozlova) A.J.Alverson, S.H.Kang & E.C.Theriot, 2006 accepted as Thalassiosira perpusilla Kozlova, 1967
Stephanodiscus astraea (Ehrenberg) Grunow, 1880
Stephanodiscus astraea var. intermedia Fricke in Schmidt et al., 1901 (uncertain > unassessed )
Stephanodiscus dubius Hustedt, 1928 (uncertain > unassessed )
Stephanodiscus hantzschii Grunow, 1880 (uncertain > unassessed )
Stephanodiscus punctatus (W.Smith) Grunow, 1878
Thalassiosira ambigua O.G.Kozlova, 1962 (uncertain > unassessed )
Thalassiosira antarctica Comber, 1896 (uncertain > unassessed )
Thalassiosira australis M.Peragallo, 1921 (uncertain > unassessed )
Thalassiosira baltica (Grunow) Ostenfeld, 1901
Thalassiosira complicata Gersonde, 1991 (uncertain > unassessed )
Thalassiosira decipiens (Grunow) E.G.Jørgensen, 1905
Thalassiosira dichotomica (O.G.Kozlova) G.A.Fryxell & G.R.Hasle, 1983 accepted as Porosira dichotomica O.G.Kozlova, 1962
Thalassiosira eccentrica (Ehrenberg) Cleve, 1904 (uncertain > unassessed )
Thalassiosira elliptipora (Donahue) Fenner, 1991 (uncertain > unassessed )
Thalassiosira expecta VanLandingham, 1978 (uncertain > unassessed )
Thalassiosira ferelineata Hasle & G.A.Fryxell, 1977 (uncertain > unassessed )
Thalassiosira frenguelli Kozlova, 1964 (uncertain > unassessed )
Thalassiosira frenguellii O.G.Kozlova, 1964 (uncertain > unassessed )
Thalassiosira frenguelliopsis G.A.Fryxell & J.R.Johans, 1985 (uncertain > unassessed )
Thalassiosira gerloffii Rivera, 1981
Thalassiosira gracilis (Karsten) Hustedt, 1958 accepted as Coscinodiscus gracilis Karsten, 1905
Thalassiosira gracilis var. expecta (VanLandingham) G.Fryxell & Hasle, 1979 (uncertain > unassessed )
Thalassiosira gracilis var. gracilis
Thalassiosira gravida Cleve, 1896
Thalassiosira insigna (Jousé) Harwood & Maruyama, 1992 accepted as Actinocyclus complanatus var. complanatus Castracane, 1886
Thalassiosira inura Gersonde, 1991 (uncertain > unassessed )
Thalassiosira lentiginosa (Janisch) Fryxell, 1977 accepted as Coscinodiscus lentiginosus var. lentiginosus Janisch in Schmidt et al., 1878
Thalassiosira leptopus (Grunow ex Van Heurck) Hasle & G.Fryxell, 1977 (uncertain > unassessed )
Thalassiosira lineata Jousé, 1968 (uncertain > unassessed )
Thalassiosira maculata G.A.Fryxell & J.R.Johansen, 1985 (uncertain > unassessed )
Thalassiosira margaritae (Frenguelli & Orlando) O.G.Kozlova, 1962 accepted as Coscinodiscus margaritae Frenguelli & Orlando, 1958
Thalassiosira oestrupii (Ostenfeld) Hasle, 1972 represented as Shionodiscus oestrupii (Ostenfeld) A.J.Alverson, S.H.Kang & E.C.Theriot, 2006
Thalassiosira oliverana
Thalassiosira oliveriana (O'Meara) I.V.Makarova & V.A.Nikolajev, 1983 (uncertain > unassessed )
Thalassiosira partheneia Schrader, 1972 (uncertain > unassessed )
Thalassiosira perpusilla Kozlova, 1967 (uncertain > unassessed )
Thalassiosira poro-irregulata Hasle & Heimdal, 1970 (uncertain > unassessed )
Thalassiosira poroseriata (Ramsfjell) Hasle, 1972 accepted as Coscinosira poroseriata Ramsfjell, 1959
Thalassiosira ritscheri (Hustedt) Hasle, 1970 accepted as Coscinodiscus ritscheri Hustedt, 1958
Thalassiosira scotia Fryxell & Hoban, 1979 (uncertain > unassessed )
Thalassiosira striata Harwood & Maruyama, 1992 (uncertain > unassessed )
Thalassiosira symmetrica G.A.Fryxell & Hasle, 1973 (uncertain > unassessed )
Thalassiosira torokina Brady, 1977 (uncertain > unassessed )
Thalassiosira trifulta G.Fryxell, 1979 (uncertain > unassessed )
Thalassiosira tumida (Janisch) Hasle, 1971 accepted as Coscinodiscus tumidus var. tumidus Janisch in Schmidt et al., 1878
Thalassiosira vulnifica (Gombos) Fenner amend Mahood & Barron, 1996 accepted as Coscinodiscus vulnificus Gombos, 1976
Thalassiosira webbi Harwood & Maruyama, 1992 (uncertain > unassessed )