Phylum Mollusca Linnaeus, 1758 - molluscs Class Bivalvia Linnaeus, 1758 - bivalves Subclass Heterodonta Neumayr, 1884 see Clade Heterodonta Neumayr, 1884 Order Myida Stoliczka, 1870 Suborder Pholadina Newell, 1965 see Superfamily Pholadoidea Lamarck, 1809 1 Superfamily Pholadoidea Lamarck, 1809