†family Plagiothyridae Knight 1956 (snail)
Gastropoda - Neritoina - Plagiothyridae
Full reference: J. B. Knight. 1956. New families of Gastropoda. Journal of the Washington Academy of Sciences 46(2):41-42
Parent taxon: Neritopsoidea according to P. Bouchet et al. 2005
See also Heidelberger and Koch 2005 and Knight et al. 1960
Sister taxa: Bandelopsis, Cortinellidae, Delphinulopsidae, Fedaiellidae, Neritopsidae, Palaeonaricidae, Pseudorthonychiidae, Scalaneritinidae, Titiscaniidae, Tricolnaticopsidae
Subtaxa: Dirachis Grabinopsis Littorinides Plagiothyra
Type: Plagiothyra
Ecology: epifaunal
Distribution: