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 Insectivora Bowdich, 1821 - insectivores see Superorder Insectivora Bowdich, 1821
                     Suborder Lipotyphla Haeckel, 1866 see Grandorder Lipotyphla Haeckel, 1866
                       Family Soricidae Fischer, 1814 - shrews
                         Subfamily Soricinae Fischer, 1814
                           Genus Microsorex Baird, 1877 see Subgenus Otisorex De Kay, 1842
                             Microsorex hoyi (Baird, 1857) - pygmy shrew see Sorex hoyi Baird, 1857