Class Bivalvia Linnaeus, 1758 - bivalves Subclass Autobranchia Grobben, 1894 Superorder Pteriomorphia Beurlen, 1944 Order Pectinida Gray, 1854 Superfamily †Buchioidea Cox, 1953 (1886) 1 Family †Buchiidae Cox, 1953 (1886), nom. cons. 2 Family †Eurydesmatidae Reed, 1932 3 Family †Manticulidae Waterhouse, 2008