Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Bivalvia Linnaeus, 1758 - bivalves
     Subclass Anomalodesmata Dall, 1889 [monotypic] see Order Anomalodesmata Dall, 1889
       Order Pholadomyida Newell, 1965
         1 Suborder Pholadomyina Newell, 1965 see Order Pholadomyida Newell, 1965
         2 Suborder Clavagellina Newell, 1965 [monotypic] see Superfamily Clavagelloidea d'Orbigny, 1844
         3 Suborder Poromyina [monotypic] see Superfamily Poromyoidea Dall, 1886
         4 Suborder Cuspidariina see Superfamily Cuspidarioidea Dall, 1886