Difference between revisions of "Subfamily Dinogymnioideae"

Diagnosis:Ptychodiscaceans in which dinosporin is the principal element in the pellicle and in which the ecdysal aperture is apical.

Dinogymnium Evitt et al. 1967; fossil - Late Cretaceous (Maastrichtian).

Alisogymnium Lentin and Vozzhennikova 1990; Late Cretaceous (Senonian).
Amphigymnium Lentin and Vozzhennikova 1990; Late Cretaceous (Turonian-Senonian).
Dinogymnium Evitt et al. 1967; Late Cretaceous (Maastrichtian).
Yolkinigymnium Lentin and Vozzhennikova 1990; Late Cretaceous (Campanian-Maastrichtian).