Class Bivalvia Linnaeus, 1758 - bivalves Subclass Autobranchia Grobben, 1894 Superorder Pteriomorphia Beurlen, 1944 Order Pectinida Gray, 1854 Superfamily †Chaenocardioidea Miller, 1889 1 Family †Chaenocardiidae Miller, 1889 2 ?Family †Binipectinidae Feng & Liu, 1990 3 Family †Streblochondriidae Newell, 1938