Cleistosphaeridium patagonicum

"?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