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Clausa d'Orbigny, 1853


Scanning electron micrograph of autozooids in Clausa heteropora.

Clausa heteropora (d'Orbigny, 1850)
Scanning electron micrograph (pdt1736) showing fixed-walled autozooids
MNHN R61539b, d'Orbigny Collection, ?syntype, Cenomanian, Le Mans, Sarthe, France