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Canningia circularis

"Canningia? circularis" Cookson and Eisenack, 1971, p.219, pl.8, fig.6.

TYPE: Holotype: Cookson and Eisenack, 1971, pl.8, fig.6.

HISTORY: NOW: Kallosphaeridium?. Originally Canningia, subsequently Canningia?, thirdly Batiacasphaera, fourthly (and now) Kallosphaeridium?. Questionable assignment: Stover and Evitt (1978, p.25).

AGE: mid Cretaceous, ?Turonian.


Infraspecific taxa:


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