†subfamily Pliocardiinae Woodring 1925 (clam)
Bivalvia - Cardiida - Vesicomyidae
Parent taxon: Vesicomyidae according to S. Kiel et al. 2023
See also Amano et al. 2019
Sister taxa: Akebiconcha, Archivesica, Hubertschenckia, Isorropodon, Pleurophopsis, Squiresica, Vesicomya
Subtaxa: Adulomya Pliocardia
Ecology: facultatively mobile infaunal suspension feeder
Distribution:
• Quaternary of United States (1: California collection)
• Pliocene of Jamaica (2)
• Miocene of Japan (7), United States (1: Alaska)
• Oligocene of Colombia (1), United States (4: Washington)
• Eocene of United States (1: Washington)
Total: 17 collections including 19 occurrences