RAMS Taxon list
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 )
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
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 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 expecta VanLandingham, 1978 (uncertain > unassessed )
Thalassiosira ferelineata Hasle & G.A.Fryxell, 1977 (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 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 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 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 symmetrica G.A.Fryxell & Hasle, 1973 (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