Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
     Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910
       Subdivision Bilateralia
         Phylum Mollusca Linnaeus, 1758 - molluscs
           Subphylum Conchifera Gegenbauer, 1878
             Class Bivalvia Linnaeus, 1758 - bivalves
               Order Eulamellibranchiata
                 Suborder Heterodonta Neumayr, 1884 see Clade Heterodonta Neumayr, 1884
                   Superfamily Sphaerioidea Deshayes, 1855 (1820)
                     Family Sphaeriidae Deshayes, 1855 (1820) - freshwater fingernail clams