†superfamily Capuloidea Fleming 1822 (snail)
Parent taxon: Littorinimorpha according to P. Jeffery 2003
Sister taxa: Calyptraeoidea, Carinarioidea, Cingulopsoidea, Cypraeoidea, Ficoidea, Laubierinoideae, Littorinoidea, Naticoidea, Pterotracheoidea, Rissooidea, Stromboidea, Tonnoidea, Vanikoroidea, Velutinoidea, Vermetoidea, Xenophoroidea
Subtaxa: Capulidae, Trichotropidae
Ecology: facultatively mobile epifaunal suspension feeder