| Gymnodiniaceae Lank., 1885 |
| Gymnodinium F. Stein, 1878 |
| Gymnodinium abbreviatum Kof. & Swezy, 1921 |
| Gymnodinium aequatoriale Hasle, 1960 |
| Gymnodinium amphora Kof. & Swezy, 1921 |
| Gymnodinium aurantium P.H. Campbell, 1973 |
| Gymnodinium auratum Kof. & Swezy, 1921 |
| Gymnodinium aureum Kof. & Swezy, 1921 |
| Gymnodinium breve C.C. Davis, 1948 |
| Gymnodinium catenatum L.W. Graham, 1943 |
| Gymnodinium chlorophorum Elbrächter & Schnepf, 1996 |
| Gymnodinium cinctum Kof. & Swezy, 1921 |
| Gymnodinium coeruleum Dogiel, 1906 |
| Gymnodinium conicum Kof. & Swezy, 1921 |
| Gymnodinium costatum Kof. & Swezy, 1921 |
| Gymnodinium dissimile Kof. & Swezy, 1921 |
| Gymnodinium flavum Kof. & Swezy, 1921 |
| Gymnodinium fuscum (Ehrenb.) F. Stein, 1878 |
| Gymnodinium fusus Schütt, 1895 |
| Gymnodinium galeaeforme Matzen., 1933 |