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 Sciuromorpha Brandt, 1855
                       1 Family Aplodontidae Trouessart, 1897, orth. inval. - sewellel see Family Aplodontiidae Brandt, 1855
                       2 Family Sciuridae Batsch, 1788 - squirrels, chipmunks, marmots, and prairie dogs
                       3 Family Geomyidae Bonaparte, 1845 - pocket gophers
                       4 Family Heteromyidae Gray, 1868 - pocket mice, kangaroo rats, and kangaroo mice
                       5 Family Castoridae Batsch, 1788 - beavers
                       6 Family Anomaluridae Gervais, 1849 - scaly-tailed squirrels
                       7 Family Pedetidae Gray, 1825 - springhare