Class Bivalvia Linnaeus, 1758 - bivalves Subclass Autobranchia Grobben, 1894 Superorder Heteroconchia Gray, 1854 Clade Heterodonta Neumayr, 1884 Order Venerida Gray, 1854 Superfamily Veneroidea Rafinesque, 1815 Family Veneridae Rafinesque, 1815 - venus clams Subfamily Sunettinae Stoliczka, 1870