living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
       Subkingdom Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
         Phylum Chordata Bateson, 1885 - chordates
           Subphylum Vertebrata Cuvier, 1812 - vertebrates
             Class Mammalia Linnaeus, 1758 - mammals
               Subclass Theria Parker & Haswell, 1897
                 Infraclass Eutheria Gill, 1872
                   Order Rodentia Bowdich, 1821 - rodents
                     Suborder Myomorpha Brandt, 1855 see Infraorder Myomorphi
                       Superfamily Muroidea Batsch, 1788
                         Family Muridae Batsch, 1788 - rats, mice, hamsters, voles, lemmings, and gerbils
                           Subfamily Hydromyinae Alston, 1876 see Subfamily Murinae Batsch, 1788
                             1 Genus Hydromys Geoffroy Saint-Hilaire, 1804 - beaver-rats
                             2 Genus Chrotomys Thomas, 1895 - Philippine striped rats
                             3 Genus Paraleptomys Tate & Archbold, 1941
                             4 Genus Pseudohydromys Rümmler, 1934 - New Guinea false water rats