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Polysphaeridium congregatum

Polysphaeridium congregatum (Stover, 1977, p.79, pl.3, figs.39-44) Bujak et al., 1980, p.34.

TYPE: Holotype: Stover, 1977, pl.3, figs.39-42.

HISTORY: Originally Hemicystodinium, subsequently (and now) Polysphaeridium.

AGE: mid Oligocene.


Infraspecific taxa:


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