HOME  Hierarchy  Table  Index  References

Hystrichosphaeridium pachydermum

"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