Superfamily Hemidonacoidea Scarlato and Starobogatov 1971 (clam)
Parent taxon: Veneroitei according to J. G. Carter et al. 2011
Sister taxa: Arcticoidea, Chamoidea, Cyrenoidea, Gaimardioidea, Glossoidea, Mactroidea, Ungulinoidea, Veneroidea
Subtaxa: Hemidonacidae
Ecology: facultatively mobile infaunal suspension feeder
Distribution: there are no occurrences of Hemidonacoidea in the database