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Cleistosphaeridium nanus

"Cleistosphaeridium? nanus" (Rozen, 1965, p.311, pl.2, figs.7-8; text-fig.21) Sarjeant, 1981, p.122.

TYPE: Holotype: Rozen, 1965, pl.2, figs.7-8.

HISTORY: NOW: Impletosphaeridium nanus. Originally Cordosphaeridium microtriainum var. nanus, subsequently Cordosphaeridium microtriainum subsp. nanus, thirdly Cleistosphaeridium? nanus, fourthly (and now) Impletosphaeridium nanus. Questionable assignment: Sarjeant (1981, p.122).

ETYMOLOGY: N.I.A.

AGE: Late Eocene.


Infraspecific taxa:


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