Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Bivalvia Linnaeus, 1758 - bivalves
     Subclass Palaeoheterodonta Newell, 1965 see Clade Palaeoheterodonta Newell, 1965
       Order Unionida Gray, 1854
         Superfamily Unionoidea Rafinesque, 1820
           Family Hyriidae Swainson, 1840
             Subfamily Hyriinae Swainson, 1840
               Genus Diplodon Spix, 1827
                 1 Subgenus Bulloideus Simpson, 1900
                 2 Subgenus Rhipidodonta Mörch, 1853
                 3 Subgenus Schleschiella Modell, 1950