†Cyclorisma Dall 1902 (venus clam)
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Bivalvia - Cardiida - Veneridae
Alternative spelling: Cyprimeria (Cyclorisma)
Parent taxon: Tapetinae according to H. E. Vokes 1980
See also Riedel 1933 and Sepkoski 2002
Sister taxa: Cyclorismina, Eumarcia, Flaventia, Gomphina, Granicorium, Irus, Katelysia, Legumen, Liocyma, Marcia, Mercimonia, Paphia, Retrotapes, Ruditapes, Sinonia, Tapes, Textivenus, Venerella, Veneritapes
Subtaxa: none
Ecology: facultatively mobile infaunal suspension feeder
Distribution:
• Cretaceous of Antarctica (7 collections), Austria (1), Brazil (2), Greenland (1), Mexico (1), United States (115: Alabama, Arizona, Georgia, Maryland, Mississippi, South Carolina, Texas)
Total: 127 collections including 132 occurrences
Specimen images are retrieved through the ePANDDA API.
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