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 Unionidae Rafinesque, 1820 - pearly mussels
             Subfamily Anodontinae Rafinesque, 1820 see Tribe Anodontini Rafinesque, 1820
               Genus Anodonta Lamarck, 1799
                 1 Subgenus Anemina Haas, 1969
                 2 Subgenus Arnoldina Hannibal, 1912
                 3 Subgenus Brachyanodon Crosse & Fischer, 1894
                 4 Subgenus Gabillotia Servain, 1890
                 5 Subgenus Mesanodon Crosse & Fischer, 1894
                 6 Subgenus Pyganodon Crosse & Fischer, 1894 see Genus Pyganodon Crosse & Fischer, 1894
                 7 Subgenus Utterbackiana Frierson, 1927