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Circulodinium spinosum

Circulodinium spinosum (Boltenhagen, 1977, p.54-55, pl.7, figs.1a-b,2,3a-b,4a-b,5a-b) Islam, 1993, p.83.

TYPE: Holotype: Boltenhagen, 1977, pl.7, figs.1a-b.

HISTORY: Originally Chytroeisphaeridia, subsequently Cleistosphaeridium?, thirdly (and now) Circulodinium.

AGE: Cenomanian-Turonian.


Infraspecific taxa:


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