Superfamily Gaimardioidea Hedley 1916 (clam)
Alternative spelling: Gaimardiacea
Parent taxon: Veneroitei according to J. G. Carter et al. 2011
See also Bouchet et al. 2010, Nevesskaja 2009, Stilwell and Zinsmeister 1992 and Vokes 1980
Sister taxa: Arcticoidea, Chamoidea, Cyrenoidea, Glossoidea, Hemidonacoidea, Mactroidea, Ungulinoidea, Veneroidea
Subtaxa: Gaimardiidae
Ecology: facultatively mobile infaunal suspension feeder
Distribution:
• Pliocene of Antarctica (2 collections)
• Eocene of Antarctica (1)
Total: 3 collections each including a single occurrence