Phylum Mollusca Linnaeus, 1758 - molluscs Class Bivalvia Linnaeus, 1758 - bivalves Subclass Pteriomorphia Beurlen, 1944 see Superorder Pteriomorphia Beurlen, 1944 Order Mytilida Férussac, 1822 [monotypic] 1 Suborder Mytilina Férussac, 1822 [monotypic] see Order Mytilida Férussac, 1822