"Hystrichosphaeridium? pachydermum" Cookson and Eisenack, 1960b, p.251-252, pl.38, fig.5; text-fig.5.
TYPE: Holotype: Cookson and Eisenack, 1960b, pl.38, fig.5. HISTORY: NOW: Dapsilidinium. Originally Hystrichosphaeridium, subsequently Polysphaeridium, thirdly Hystrichosphaeridium?, fourthly (and now) Dapsilidinium. Questionable assignment: Stover and Evitt (1978, p.56) as a problematical species. AGE: Oxfordian-Tithonian.
Infraspecific taxa: Go up one level. DINOFLAJ (c) 1998 |