Superfamily Ungulinoidea Adams and Adams 1857 (clam)
Parent taxon: Veneroitei according to J. G. Carter et al. 2011
Sister taxa: Arcticoidea, Chamoidea, Cyrenoidea, Gaimardioidea, Glossoidea, Hemidonacoidea, Mactroidea, Veneroidea
Subtaxa: Ungulinidae
Ecology: facultatively mobile infaunal suspension feeder