Phylum Mollusca Linnaeus, 1758 - molluscs Class Bivalvia Linnaeus, 1758 - bivalves Subclass Pteriomorphia Beurlen, 1944 see Superorder Pteriomorphia Beurlen, 1944 Order Limida Moore, 1952 [monotypic] 1 Superfamily Limoidea Rafinesque, 1815 [monotypic]