Family Discidae Thiele 1931 (pulmonate)
Gastropoda - Pulmonata - Discidae
Parent taxon: Pulmonata according to B. Roth and K. C. Emberton 1994
Sister taxa: Akteophila, Basommatophora, Basommatophora, Bernicia, Ceriidae, Petrophila
Subtaxa: Discus
Type: Discus
Ecology: epifaunal
Distribution:
• Quaternary of France (1 collection), Germany (1), Italy (2), United States (4: Kansas, Michigan, Virginia)
• Miocene of Austria (5), Germany (9), Hungary (1), Poland (1)
• Oligocene to Miocene of United States (1: Montana)
• Eocene of United States (1: Wyoming)
Total: 26 collections including 28 occurrences