Bivalvia - Pholadomyida - Pholadomyidae
Parent taxon: Pholadomyidae according to J. G. Carter et al. 2011
Sister taxa: Agrawalimya, Anomalopleuroidea, Arcomya, Cortinia, Deltamya, Dianomya, Girardotia, Goniomya, Homomya, Homoya, Machomya, Molukkana, Neoburmesia, Osteomya, Pachymya, Parilimya, Pholadomya, Rhytimya, Tetorimya, Triplicosta
Subtaxa: Cosmomya Exochorhynchus
Ecology: facultatively mobile deep infaunal suspension feeder
Distribution:
• Permian of Australia (7 collections), Brazil (1), Canada (8: Yukon), Greenland (1), India (1), Mongolia (2), the Russian Federation (20)
• Carboniferous to Permian of the Russian Federation (1)
• Carboniferous of Brazil (1), Mongolia (1), Peru (3), the Russian Federation (3), the United Kingdom (1)
Total: 50 collections including 54 occurrences