Parent taxon: Vetigastropoda according to C. S. Cataldo 2017
See also Bouchet et al. 2005
Sister taxa: Amberleyoidea, Angarioidea, Blodgettella, Cirroidea, Crosseolidae, Frydatinus, Jurassiphorus, Lepetellida, Microdomatoidea, Nodoconus, Pendromidae, Pleurotomariida, Pleurotomarioidea, Ptychomphaloidea, Purkynespira, Schizogonioidea, Seguenziida, Seguenzioidea, Selenimorpha, Trochina, Trochoidea
Subtaxa: Proconulidae
Ecology: epifaunal grazer
Distribution:
• Paleocene of United States (1: Texas collection)
• Cretaceous of Japan (3)
• Jurassic of Chile (1), Ethiopia (1), France (1), Germany (9), Greenland (1), Hungary (23), India (1), Italy (4), Jordan (3), Poland (3), Romania (1), Somalia (5), Turkey (2), the United Kingdom (1), Yemen (3)
• Triassic of China (2), Indonesia (1), Italy (6), United States (1: Utah)
Total: 73 collections including 102 occurrences