| Species | as Species | Doubtful |
|---|
Connected successfully| Alexandrium minutum Halim, 1960 | | |
| Archaeperidinium minutum (Kofoid) Jorgensen, 1912 | ''Protoperidinium minutum''; | |
| Diplopsalis lenticula Bergh, 1881 | | |
| Diplopsalopsis orbicularis (Paulsen, 1907) Meunier, 1910 | | |
| Ensiculifera carinata Matsuoka, Kobayashi & Gains, 1990 | | |
| Gonyaulax polygramma Stein, 1883 | | |
| Mesoporos perforatus (Gran) Lillick 1937 | | |
| Oblea rotunda (Lebour, 1922) Balech, 1964 ex Sournia, 1973 | | |
| Pentapharsodinium dalei Indelicato & Loblich, 1986 | | |
| Pentapharsodinium tyrrhenicum (Balech, 1990) Montresor, Zingone & Marino, 1993 | | |
| Peridiniella sphaeroidea Kofoid & Michener, 1911 | | |
| Prorocentrum balticum (Lohmann, 1908) Loeblich, 1970 | | |
| Prorocentrum compressum (Bailey, 1850) Abé ex Dodge, 1975 | | |
| Prorocentrum cordatum (Ostenfeld, 1901) Dodge, 1975 | | |
| Prorocentrum lima (Ehrenberg, 1860) Stein, 1975 | | |
| Prorocentrum ponticus Krachmalny et Terenko, 2002 | | |
| Protoperidinium parthenopes A.Zingone & M.Montresor, 1988 | | |
| Protoperidinium ponticum Vershinin & Morton, 2005 | | |
| Scrippsiella trochoidea (Stein, 1883) Balech ex Loeblich III, 1965 | | |