| Species | as Species | Doubtful |
|---|---|---|
| Asterionellopsis glacialis (Castracane) Round in Round et al., 1990 | ||
| Attheya decora T. West, 1860 | ||
| Bacteriastrum delicatulum Cleve, 1897 | ||
| Lioloma pacificum (Cupp) Hasle, 1996 | ||
| Pseudosolenia calcar-avis (Schultze) Sundström, 1986 | ||
| Skeletonema subsalsum (A.Cleve) Bethge, 1928 | ||
| Stephanodiscus socialis I.V.Makarova & A.I.Proshkina-Lavrenko | ||
| Thalassiosira nordenskioeldii P.T. Cleve, 1873 |