Alternative combinations: Cassidulus hemisphericus, Cossmannaster hemisphaericus, Hardouinia hemispherica
Synonym: Cassidulus conoideus Clark and Twitchell 1915
Belongs to Clarkiella according to C. W. Cooke 1953
See also Clark and Twitchell 1915, Kier 1962 and Sanchez Roig 1926
Sister taxa: Hardouinia aequorea, Hardouinia bassleri, Hardouinia conoideus, Hardouinia florealis, Hardouinia kellumi, Hardouinia mcglameryae, Hardouinia micrococcus, Hardouinia mortonis, Hardouinia stantoni, Hardouinia taylori
Ecology: slow-moving semi-infaunal detritivore
Distribution:
• Cretaceous of Cuba (1 collection), United States (3: Alabama, Georgia, Mississippi)
Total: 4 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.