†superfamily Rissoacea Gray 1847 (snail)
Parent taxon: Truncatelloidea according to W. F. Ponder and A. Warén 1988
See also Allison 1955, Beu et al. 1990, Knight et al. 1960, Sohl 1964 and Ward and Blackwelder 1987
Sister taxa: Adeorbiidae, Amnicolidae, Anabathridae, Assimineidae, Caecidae, Calopiidae, Clenchiellidae, Elachisinidae, Emmerciidae, Falsicingulidae, Hydrobiidae, Hydrococcidae, Iravadiidae, Pomatiopsidae, Stenothyridae, Tornidae, Truncatellidae, Vitrinellidae
Subtaxa: Mirolaminatus Synceratidae Trochoturbella
Ecology: epifaunal
Distribution:
• Miocene of United States (5: Florida collections)
• Jurassic of the United Kingdom (3)
Total: 8 collections each including a single occurrence