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 Geomyoidea Bonaparte, 1845
                       Family Heteromyidae Gray, 1868 - pocket mice, kangaroo rats, and kangaroo mice
                         Genus Dipodomys Gray, 1841 - kangaroo-rats
                         Genus Heteromys Desmarest, 1817 - forest spiny pocket mice
                         Genus Liomys Merriam, 1902 - spiny pocket mice
                         Genus Microdipodops Merriam, 1891 - kangaroo-mice
                         Genus Perognathus Wied-Neuwied, 1839 - silky pocket mice