Phylum Mollusca Linnaeus, 1758 - molluscs Class Bivalvia Linnaeus, 1758 - bivalves Subclass Anomalodesmata Dall, 1889 [monotypic] see Order Anomalodesmata Dall, 1889 Order Pholadomyida Newell, 1965 Suborder Poromyina [monotypic] see Superfamily Poromyoidea Dall, 1886 Superfamily Poromyoidea Dall, 1886 [monotypic] 1 Family Poromyidae Dall, 1886