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Emmetrocysta urnaformis

*Emmetrocysta urnaformis (Cookson, 1953, p.118, pl.2, figs.41-43) Stover, 1975, p.42.

TYPE: Holotype: Cookson, 1953, pl.2, figs.41-42.

HISTORY: Originally Cannosphaeropsis, subsequently Polystephanephorus, thirdly (and now) Emmetrocysta.

AGE: Oligocene.


Infraspecific taxa:


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