"Hystrichosphaeridium? transculentum" Sah et al., 1970, p.147, pl.2, figs.18-19.
TYPE: Holotype: Sah et al., 1970, pl.2, fig.18. HISTORY: NOW: Achomosphaera. Originally Hystrichosphaeridium, subsequently Hystrichosphaeridium?, thirdly (and now) Achomosphaera. Questionable assignment: Stover and Evitt (1978, p.56) as a problematical species. AGE: Late Cretaceous.
Infraspecific taxa: Go up one level. DINOFLAJ (c) 1998 |