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Clausa d'Orbigny, 1853


Scanning electron micrograph of open autozooids and closed kenozooids in Clausa heteropora.

Clausa heteropora (d'Orbigny, 1850)
Scanning electron micrograph (pdt1731) showing autozooids with short peristomes and circular apertures surrounded by polygonal kenozooids closed by terminal diaphragms
MNHN R61539a, d'Orbigny Collection, ?syntype, Cenomanian, Le Mans, Sarthe, France