†Calva (Calva) Popenoe 1937 (venus clam)
Bivalvia - Cardiida - Veneridae
Parent taxon: Calva according to L. R. Saul and W. P. Popenoe 1992
Sister taxa: Calva (Egelicalva), Calva (Microcalva), Calva (Penecallista)
Subtaxa: Calva (Calva) baptisia Calva (Calva) campanae Calva (Calva) heliaca Calva (Calva) peninsularis Calva (Calva) regina Calva (Calva) varians
Ecology: facultatively mobile infaunal suspension feeder
Distribution:
• Cretaceous of Mexico (4 collections), United States (93: California)
Total: 97 collections each including a single occurrence