Gymnodinium heterocostatum Appendix B
From dinoflaj2
"heterocostatum" Deflandre, 1936b, p.165-166, pl.2, fig.6. Holotype: Deflandre, 1935, text-fig.6; Deflandre, 1936b, pl.2, fig.6. NOW Dinogymnium. Originally Gymnodinium, subsequently (and now) Dinogymnium. This name was not validly published in Deflandre (1935, p.225) since no description was given. Age: ?Senonian.
Parent: Gymnodinium
