Hardouinia bassleri Clark and Twitchell 1915 (sea urchin)

Echinoidea - Cassiduloida

Alternative combination: Cassidulus bassleri

Full reference: W. B. Clark and M. W. Twitchell. 1915. The Mesozoic and Cenozoic Echinodermata of the United States. United States Geological Survey Bulletin 54:1-341

Belongs to Hardouinia according to C. W. Cooke 1953

Sister taxa: Hardouinia aequorea, Hardouinia conoideus, Hardouinia florealis, Hardouinia kellumi, Hardouinia mcglameryae, Hardouinia micrococcus, Hardouinia mortonis, Hardouinia stantoni, Hardouinia taylori, Clarkiella hemispherica

Type specimen: Its type locality is USGS 175, Cunninghams Bluff, which is in a Santonian marine sandstone in the Eutaw Formation of Alabama

Ecology: slow-moving semi-infaunal detritivore

Distribution:

• Cretaceous of United States (6: Alabama collections)

Total: 6 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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