†superfamily Xenophoroidea Troschel 1852 (snail)
Parent taxon: Littorinimorpha according to P. Jeffery 2003
Sister taxa: Calyptraeoidea, Capuloidea, Carinarioidea, Cingulopsoidea, Cypraeoidea, Ficoidea, Laubierinoideae, Littorinoidea, Naticoidea, Pterotracheoidea, Rissooidea, Stromboidea, Tonnoidea, Vanikoroidea, Velutinoidea, Vermetoidea
Subtaxa: Lamelliphoridae, Planitrochidae, Xenophoridae
Ecology: epifaunal grazer