Cyclocardia granulata group a.JPG
Cyclocardia granulata Bivalve
SITE LOCATION: James City Formation, Beaufort Co., North Carolina, USA
TIME PERIOD: Pleistocene age (2,588,000 to 11,700 years ago)
Data: Cyclocardia is a genus of molluscs in the family Carditidae. The related genus Vimentum is sometimes included here. Carditidae is a family of marine bivalve clams of the order Carditoida, which was long included in the Veneroida. They are the type taxon of the superfamily Carditoidea. Delimitation of this family versus the closely related Condylocardiidae is somewhat problematic.