Superfamily Littorinoidea Gray 1840 (periwinkle)
Parent taxon: Hypsogastropoda according to P. Bouchet et al. 2017
Sister taxa: Abyssochrysoidea, Capuloidea, Hipponicoidea, Latrogastropoda, Lyocyclidae, Naticoidea, Rissooidea, Settsassiidae, Triphoroidea, Truncatelloidea, Vermetoidea, Weeksiidae
Subtaxa: none
Ecology: epifaunal grazer