Vertebrata Cuvier, 1812 - vertebrates
   Gnathostomata
     Teleostomi
       Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988]
         Amniota Haeckel, 1866 [Gauthier, Kluge & Rowe 1988] - amniotes
           Class Mammalia Linnaeus, 1758 - mammals
             Subclass Theria Parker & Haswell, 1897
               Theria of Metatherian-Eutherian grade
                 Infraclass Eutheria Gill, 1872
                   Order Rodentia Bowdich, 1821 - rodents
                     Suborder Sciurognathi (Tullberg, 1899) see Suborder Sciuromorpha Brandt, 1855
                       1 Infraorder Protrogomorpha (Zittel, 1893)
                       2 Infraorder Sciuromorpha Brandt, 1855 [monotypic] see Suborder Sciuromorpha Brandt, 1855
                       3 Infraorder Castorimorpha Wood, 1955 see Infraorder Castorimorphi
                       4 Infraorder unnamed [monotypic]
                       5 Infraorder Myomorpha Brandt, 1855 see Suborder Myomorpha Brandt, 1855
                       6 Superfamily Ctenodactyloidea (Gervais, 1853) Simpson, 1945 see Family Ctenodactylidae Gervais, 1853
                       7 Superfamily Pedetoidea Gray, 1825 [monotypic]
                       8 Superfamily Anomaluroidea Gervais, 1849 [monotypic]
                       9 Superfamily †Theridomyoidea Alston, 1876 [monotypic] see Infraorder Theridomyomorpha Wood, 1955