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