Phylum [Mollusca] Linnaeus, 1758 - molluscs Class Bivalvia Linnaeus, 1758 - bivalves Order Veneroida H. & A. Adams, 1856 see Order Venerida Gray, 1854 Superfamily Tridacnacea Lamarck, 1819, nom. illeg. see Superfamily Cardioidea Lamarck, 1809 1 Family Tridacnidae - giant clams see Subfamily Tridacninae Lamarck, 1819