Kingdom [Animalia] Linnaeus, 1758 - animals
   Phylum Chordata Bateson, 1885 - chordates
     Subphylum Vertebrata Cuvier, 1812 - vertebrates
       Class Mammalia Linnaeus, 1758 - mammals
         Subclass Theria Parker & Haswell, 1897
           Infraclass Eutheria Gill, 1872
             01 Order Insectivora Bowdich, 1821 - insectivores see Superorder Insectivora Bowdich, 1821
             02 Order †Tillodontia Marsh, 1875
             03 Order †Taeniodonta Cope, 1876
             04 Order Chiroptera Blumenbach, 1779 - bats
             05 Order Primates Linnaeus, 1758 - primates
             06 Order †Creodonta Cope, 1875
             07 Order Carnivora Bowdich, 1821 - carnivores
             08 Order †Condylarthra Cope, 1881
             09 Order †Pantodonta Cope, 1873
             10 Order †Dinocerata Marsh, 1873
             11 Order †Embrithopoda Andrews, 1906
             12 Order †Notoungulata Roth, 1903
             13 Order †Xenungulata Paula Couto, 1952
             14 Order †Pyrotheria Ameghino, 1895
             15 Order †Astrapotheria Lydekker, 1894
             16 Order †Litopterna Ameghino, 1889
             17 Order Hyracoidea Huxley, 1869 - hyraxes
             18 Order Proboscidea Owen, 1859 - elephants
             19 Order Sirenia Gill, 1872 - sea cows
             20 Order †Desmostylia Reinhart, 1953
             21 Order Perissodactyla Owen, 1848 - odd-toed ungulates
             22 Order Artiodactyla Owen, 1848 - even-toed ungulates see Order Cetartiodactyla Montgelard, Catzeflis & Douzery, 1997
             23 Order Edentata Vicq-d'Azyr, 1792 see Order Xenarthra Cope, 1889
             24 Order Pholidota Weber, 1904 - pangolins
             25 Order Tubulidentata Huxley, 1872 - aardvark
             26 Order Cetacea Brisson, 1762 - whales, dolphins, and porpoises see Infraorder Cetacea Brisson, 1762
             27 Order Rodentia Bowdich, 1821 - rodents
             28 Order Lagomorpha Brandt, 1855 - lagomorphs