Phylum Mollusca Linnaeus, 1758 - molluscs Class Bivalvia Linnaeus, 1758 - bivalves Subclass Heterodonta Neumayr, 1884 see Clade Heterodonta Neumayr, 1884 Order Chamida see Order Venerida Gray, 1854 Superfamily Tellinoidea Blainville, 1814 Family Psammobiidae Fleming, 1828 - sunset clams Subfamily Psammobiinae Fleming, 1828 Genus Ascitellina Marwick, 1928