Family Areoligeraceae
Citation: Areoligeraceae Evitt 1963b. Diagnosis:Gonyaulacineans in which at least the anterior part of the sulcus is offset to the left. There tends to be dorsoventral compression of the fossilizable cyst and asymmetry in the antapical outline. Areoligera Lejeune-Carpentier 1938a; Cretaceous (Senonian). Adnatosphaeridium Williams and Downie 1966c; Early Eocene.
Canninginopsis Cookson and Eisenack 1962b; Cretaceous (Albian-Cenomanian).
Circulodinium Alberti 1961; Cretaceous (Valanginian-Hauterivian).
|