Gastropoda - Sorbeoconcha - Tylostomatidae
Synonym: Tylostomidae Pchelintsev 1951
Parent taxon: Campaniloidea according to P. Bouchet et al. 2017
See also Bouchet et al. 2005 and Squires and Saul 2004
Sister taxa: Campanilidae, Diozoptyxidae, Pleisotrochidae, Plesiotrochidae, Trypanaxidae
Subtaxa: Pterodonta Tylostoma
Ecology: epifaunal grazer
Distribution:
• Paleocene of Argentina (1 collection), France (1), Greenland (2)
• Cretaceous of Angola (3), Argentina (1), Brazil (8), Chile (3), China (1), Egypt (61), Ethiopia (1), France (7), Gabon (8), Germany (1), Hungary (1), Iran (6), Italy (2), Japan (13), Libya (2), Madagascar (1), Mexico (9), Portugal (3), Saudi Arabia (1), Spain (6), Switzerland (14), Tunisia (4), USSR (1), the United Arab Emirates (1), United States (7: California, New Mexico), Venezuela (1)
• Jurassic of France (1), Morocco (1), Romania (1), Saudi Arabia (6), United States (11: Utah), Yemen (1)
Total: 191 collections including 234 occurrences