Class Bivalvia Linnaeus, 1758 - bivalves Subclass Autobranchia Grobben, 1894 Superorder Pteriomorphia Beurlen, 1944 Order Pectinida Gray, 1854 Superfamily †Heteropectinoidea Beurlen, 1954 Family †Limipectinidae Newell & Boyd, 1990