Retusa (Coleophysis) Fischer 1883 (snail)
Gastropoda - Opisthobranchiata - Retusidae
Alternative spellings: Coelophysis, Coleophysis
Parent taxon: Retusa according to J.-M. Pacaud and J. Le Renard 1995
See also Hendy 2007, Itoigawa and Ogawa 1973 and Oldroyd 1925
Sister taxa: Retusa (Cylichnina), Retusa (Retusa), Retusa bizona, Retusa claibornensis, Retusa galba, Retusa jacksonensis, Retusa jacksonesis, Retusa obtusa, Retusa recta, Retusa scutala, Retusa truncatula, Retusa yaquensis
Subtaxa: Coleophysis carinata
Ecology: epifaunal carnivore
Distribution:
• Quaternary of Japan (1 collection), United States (2: California)
Total: 3 collections including 4 occurrences