Cleistosphaeridium patagonicum
From dinoflaj2
"?patagonicum" Archangelsky, 1969b, p.200-201, pl.3, figs.9-10. Holotype: Archangelsky, 1969b, pl.3, figs.9-10. NOW Impletosphaeridium. Originally Cleistosphaeridium, subsequently Cleistosphaeridium?, thirdly (and now) Impletosphaeridium. Questionable assignment: Stover and Evitt (1978, p.32) as a problematic species. Age: Eocene.
Parent: Cleistosphaeridium