†family Pterothecidae Wenz 1938 (snail)
Full reference: W. Wenz. 1938. Handbuch der Paläozoologie; Gastropoda. Handbuch der Paläozoologie
Parent taxon: Bellerophontoidea according to P. Bouchet et al. 2005
Sister taxa: Bellerophontidae, Blodgettinotus, Bucanellidae, Bucaniidae, Cymbulariidae, Euphemitidae, Knightitidae, Plectonotidae, Sinuitidae, Temnodiscidae, Thoralispira, Yochelsoniidae
Subtaxa: Carinaropsinae, Pedasiolinae, Pterothecinae
Type: Pterothecinae
Ecology: epifaunal detritivore