"Hemicystodinium congregatum" Stover, 1977, p.79, pl.3, figs.39-44.
TYPE: Holotype: Stover, 1977, pl.3, figs.39-42. HISTORY: NOW: Polysphaeridium. Originally Hemicystodinium, subsequently (and now) Polysphaeridium. AGE: mid Oligocene.
Infraspecific taxa: Go up one level. DINOFLAJ (c) 1998 |