"Achomosphaera? operculata" Sah et al., 1970, p.144, pl.1, figs.1-2.
TYPE: Holotype: Sah et al., 1970, pl.1, fig.1. HISTORY: NOW: Operculodinium. Originally Achomosphaera, subsequently Achomosphaera?, thirdly (and now) Operculodinium. Questionable assignment: Stover and Evitt (1978, p.139). AGE: Late Cretaceous.
Infraspecific taxa: Go up one level. DINOFLAJ (c) 1998 |