†superfamily Diaphanoidea Odhner 1914 (snail)
Parent taxon: Heterobranchia according to A. Kaim et al. 2014
See also Beesley 1998
Sister taxa: Doridoidea, Kuskokwimiidae, Omalogyroidea
Subtaxa: Diaphanidae
Ecology: epifaunal carnivore
Distribution:
• Quaternary of United States (1: California collection)
• Pliocene of Belgium (1)
• Miocene of Denmark (1)
• Eocene of the United Kingdom (1)
Total: 4 collections including 5 occurrences