Family Triphoridae Gray 1847 (snail)
Parent taxon: Triphoroidea according to P. Bouchet et al. 2005
Sister taxa: Cerithiopsidae, Newtoniellidae, Triforidae
Subtaxa: Biforina, Cautotriphora, Iniforinae, Marshallora, Metaxiinae, Monophorus, Norephora, Triphora, Triphorinae, Viriola
Ecology: epifaunal carnivore