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Cleistosphaeridium patagonicum

"Cleistosphaeridium? patagonicum" Archangelsky, 1969b, p.200-201, pl.3, figs.9-10.

TYPE: Holotype: Archangelsky, 1969b, pl.3, figs.9-10.

HISTORY: NOW: Impletosphaeridium. Originally Cleistosphaeridium, subsequently Cleistosphaeridium?, thirdly (and now) Impletosphaeridium. Questionable assignment: Stover and Evitt (1978, p.32), as a problematical species.

AGE: Eocene.


Infraspecific taxa:


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