Pygurostoma geometricum Morton 1833 (sea urchin)

Echinoidea - Cassiduloida

Alternative combinations: Clypeaster geometricus, Pygurus geometricus

Belongs to Pygurostoma according to C. W. Cooke 1953

See also Clark and Twitchell 1915

Sister taxa: Pygurostoma morgani, Pygurostoma pasionense

Ecology: slow-moving semi-infaunal detritivore


• Cretaceous of United States (2: Delaware collections)

Total: 2 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.

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