†superfamily Euchondrioidea Newell 1938 (scallop)
Parent taxon: Entoliidina according to J. G. Carter et al. 2011
Sister taxon: Entolioidea
Subtaxa: Euchondriidae
Ecology: stationary epifaunal suspension feeder
Distribution:
• Triassic to Jurassic of United States (1: Alaska collection)
• Permian of Australia (2), China (58), Japan (3), Mexico (1), Pakistan (2), the Russian Federation (5), United States (12: Alaska, Texas)
• Carboniferous to Permian of United States (1: California)
• Carboniferous of Argentina (6), Australia (2), China (3), Mexico (8), Spain (3), Ukraine (1), the United Kingdom (7), United States (14: Arkansas, Illinois, Indiana, Kansas, Maryland, Missouri, Ohio, Oklahoma)
• Devonian of Germany (2)
Total: 131 collections including 165 occurrences