| Species | as Species | Doubtful |
|---|
Connected successfully| Chaetoceros borealis J.W. Bailey, 1854 | | |
| Chaetoceros curvisetus P.T. Cleve, 1889 | | |
| Chaetoceros danicus P.T.Cleve, 1889 | | |
| Chaetoceros peruvianus Brightw. | | |
| Chaetoceros willei Grunow, 1897 | | |
| Coscinodiscus radiatus Ehrenberg, 1841 | | |
| Melosira borreri Greville, 1833 | | |
| Neoceratium furca (Ehrenberg) F.Gomez, D.Moreira & P.Lopez-Garcia, 2009 | ''Ceratium furca''; | |
| Neoceratium fusus (Ehrenberg) F.Gomez, D.Moreira & P.Lopez-Garcia, 2009 | ''Ceratium fusus''; | |
| Neoceratium tripos (O.F.Müller) F.Gomez, D.Moreira & P.Lopez-Garcia, 2009 | ''Ceratium tripos''; | |
| Proboscia alata (Brightwell) Sundström, 1986 | ''Rhizosolenia alata''; | |
| Protoperidinium divergens (Ehrenberg, 1841) Balech, 1974 | ''Peridinium divergens''; | |
| Rhabdonema adriaticum Kützing, 1844 | | |
| Thalassionema frauenfeldii (Grunow) Hallegraeff, 1986 | ''Thalassiothrix frauenfeldii''; | |
| Thalassiosira gravida P.T. Cleve, 1896 | | |
| Toxarium undulatum J.W. Bailey, 1854 | ''Synedra undulata''; | |