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 Prototheria Gill, 1872 - monotremes
                 Infraclass Ornithodelphia (de Blainville, 1834) see Subclass Prototheria Gill, 1872
                   Order Monotremata Bonaparte, 1837 - monotremes
                     Family Tachyglossidae Gill, 1872 - spiny anteaters
                       Genus Tachyglossus Illiger, 1811 - short-nosed echidna