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 Chordata Bateson, 1885 - chordates
           Subphylum Vertebrata Cuvier, 1812 - vertebrates
             Class Mammalia Linnaeus, 1758 - mammals
               Subclass Eutheria Gill, 1872 see Infraclass Eutheria Gill, 1872
                 Order Rodentia Bowdich, 1821 - rodents
                   Suborder Sciuromorpha Brandt, 1855
                     Superfamily Aplodontoidea Matthew, 1910, orth. inval. see Superfamily Aplodontioidea Brandt, 1855
                       Family Aplodontidae Trouessart, 1897, orth. inval. - sewellel see Family Aplodontiidae Brandt, 1855
                         Genus Aplodontia Richardson, 1829 - sewellel
                           1 Aplodontia rufa (Rafinesque, 1817) - mountain beaver