Parent taxon: Hypsogastropoda according to P. Bouchet et al. 2017
See also Amano and Little 2014 and Kaim et al. 2014
Sister taxa: Capuloidea, Hipponicoidea, Latrogastropoda, Littorinimorpha, Littorinoidea, Lyocyclidae, Naticoidea, Rissooidea, Settsassiidae, Triphoroidea, Truncatelloidea, Vermetoidea, Weeksiidae
Subtaxa: Abyssochrysidae Hokkaidoconchidae Paskentanidae Provannidae
Ecology: epifaunal
Distribution:
• Quaternary of United States (1: California collection)
• Miocene of Japan (3), New Zealand (1), Trinidad and Tobago (1)
• Oligocene of Japan (1), United States (5: Washington)
• Eocene to Oligocene of United States (1: Washington)
• Eocene of Barbados (1), United States (4: Washington)
• Cretaceous of France (2), Japan (2), New Zealand (1), Ukraine (1), the United Kingdom (1), United States (26: California, California )
• Jurassic of France (1), United States (2: California)
Total: 54 collections including 75 occurrences