Phylum Mollusca Linnaeus, 1758 - molluscs Class Bivalvia Linnaeus, 1758 - bivalves Subclass Pteriomorphia Beurlen, 1944 see Superorder Pteriomorphia Beurlen, 1944 Order Ostreida Férussac, 1822 1 Suborder Ostreina Férussac, 1822 see Order Ostreida Férussac, 1822 2 Suborder Pectinina Gray, 1854 see Order Pectinida Gray, 1854