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Pervosphaeridium cenomaniense

Pervosphaeridium cenomaniense (Norvick, 1976, p.52-53, pl.4, figs.4,8) Below, 1982c, p.27.

TYPE: Holotype: Norvick, 1976, pl.4, fig.4.

HISTORY: Originally Exochosphaeridium, subsequently Exochosphaeridium?, thirdly (and now) Pervosphaeridium.

AGE: Cenomanian.


Infraspecific taxa:


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