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Clausa d'Orbigny, 1853


Scanning electron micrograph of Clausa heteropora showing lobes of the gonozooidal frontal wall.

Clausa heteropora (d'Orbigny, 1850)
Scanning electron micrograph (pdt1733) showing two finger-like, depressed lobes of the gonozooid with autozooids and kenozooids around
MNHN R61539a, d'Orbigny Collection, ?syntype, Cenomanian, Le Mans, Sarthe, France