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
 see Infraphylum Vertebrata Lamarck, 1801
            
 Class Mammalia Linnaeus, 1758 - mammals
              
 Subclass Theria Parker & Haswell, 1897
                
 Infraclass Eutheria Gill, 1872
                  
 Order Edentata Vicq-d'Azyr, 1792
 see Order Xenarthra Cope, 1889
                    
 Suborder Xenarthra Cope, 1889 - xenarthrans
 see Magnorder Xenarthra Cope, 1889
                      
 1 Family Myrmecophagidae Gray, 1825 - anteaters
                      
 2 Family Bradypodidae Batsch, 1788 - three-toed tree sloths
                      
 3 Family Dasypodidae Gray, 1821 - armadillos