Class Bivalvia Linnaeus, 1758 - bivalves
   Subclass Autobranchia Grobben, 1894
     Superorder Heteroconchia Gray, 1854
       Clade Heterodonta Neumayr, 1884
         Order Pholadomyida Newell, 1965
           Septibranchia Pelseneer, 1888
             1 Superfamily Cuspidarioidea Dall, 1886
             2 Superfamily Poromyoidea Dall, 1886
             3 Superfamily Verticordioidea Stoliczka, 1870