Parent taxon: Pholadida according to J. G. Carter et al. 2011
See also Nevesskaja 2009
Sister taxa: Myoidea, Pholadoidea
Subtaxa: Ceratomyidae Pleuromyidae
Ecology: facultatively mobile infaunal suspension feeder
Distribution:
• Paleocene of Svalbard and Jan Mayen (1 collection)
• Cretaceous of Argentina (4), Canada (7: British Columbia, Northwest Territories), Chile (2), Ecuador (1), Gabon (4), Germany (3), Japan (3), Laos (1), Lebanon (1), Mexico (2), Mozambique (2), New Zealand (12), Papua New Guinea (1), the Russian Federation (23), South Africa (3), Svalbard and Jan Mayen (1), the United Kingdom (3), United States (10: California)
• Heterian of New Zealand (4)
• Temaikan of New Zealand (4)
• Jurassic to Cretaceous of Chile (1)
• Jurassic of Afghanistan (1), Antarctica (2), Argentina (3), Bulgaria (9), Canada (45: Alberta, British Columbia, Northwest Territories, Yukon), Chile (128), China (15), Denmark (3), Egypt (3), Ethiopia (9), France (73), Germany (25), Greenland (132), Hungary (1), India (50), Iran (8), Italy (3), Japan (6), Jordan (14), Kenya (13), Luxembourg (2), Madagascar (16), Mexico (5), New Zealand (17), North Atlantic (1), Poland (9), Portugal (40), Romania (1), the Russian Federation (15), Saudi Arabia (43), Serbia and Montenegro (6), Somalia (9), Spain (127), Svalbard and Jan Mayen (10), Switzerland (3), Tanzania (11), Tunisia (44), the United Kingdom (162), United States (16: Alaska, Montana, Nevada, Oregon, Texas, Utah), Vietnam (1), Yemen (12)
• Triassic to Jurassic of France (1), Switzerland (1), the United Kingdom (6)
• Triassic of Austria (12), China (6), Colombia (2), France (3), Germany (11), Hungary (21), Indonesia (2), Iran (2), Israel (2), Italy (13), Japan (4), the Netherlands (2), New Caledonia (8), New Zealand (100), Poland (1), the Russian Federation (38), Spain (17), the United Arab Emirates (1), the United Kingdom (6), United States (8: Alaska, Nevada, Utah, Wyoming), Vietnam (1)
Total: 1454 collections including 1829 occurrences