Parent taxon: Cardiida according to J. G. Carter et al. 2011
Sister taxa: Anthracosiidina, Cardioidea, Gastrochaenidina, Kalenteroidea, Leptonidina, Tellinoidea
Subtaxa: Cardioidei Palaeocarditidae
Ecology: facultatively mobile infaunal suspension feeder
Distribution:
• Jurassic of China (1 collection), New Zealand (1), the United Kingdom (2)
• Triassic of Argentina (3), Austria (50), Canada (4: British Columbia), Chile (2), China (5), France (1), Germany (1), Hungary (2), Indian Ocean (2), Indonesia (13), Iran (24), Italy (18), Japan (1), Laos (1), Mexico (3), Myanmar (1), New Zealand (2), Oman (1), Peru (3), Switzerland (2), Thailand (3), the United Arab Emirates (3), United States (6: Nevada, Oregon), Vietnam (1)
• Devonian of Norway (1)
Total: 157 collections including 167 occurrences