Class Mammalia Linnaeus, 1758 - mammals
   Order Monotremata Bonaparte, 1837 - monotremes
   Order Marsupialia Jameson, 1818 - marsupials see Cohort Marsupialia Jameson, 1818
   Order Insectivora Bowdich, 1821 - insectivores see Superorder Insectivora Bowdich, 1821
   Order Macroscelidea Butler, 1956 - elephant shrews
   Order Dermoptera Dobson, 1883
   Order Scandentia Wagner, 1855 - tree shrews
   Order Primates Linnaeus, 1758 - primates
   Order Xenarthra Cope, 1889 - xenarthrans see Magnorder Xenarthra Cope, 1889
   Order Pholidota Weber, 1904 - pangolins
   Order Lagomorpha Brandt, 1855 - lagomorphs
   Order Rodentia Bowdich, 1821 - rodents
   Order Cetacea Brisson, 1762 - whales, dolphins, and porpoises see Infraorder Cetacea Brisson, 1762
   Order Carnivora Bowdich, 1821 - carnivores
   Order Pinnipedia Illiger, 1811 - seals, sea lions, and walrus see Parvorder Pinnipedia Illiger, 1811
   Order Tubulidentata Huxley, 1872 - aardvark
   Order Proboscidea Owen, 1859 - elephants
   Order Hyracoidea Huxley, 1869 - hyraxes
   Order Sirenia Gill, 1872 - sea cows
   Order Perissodactyla Owen, 1848 - odd-toed ungulates
   Order Artiodactyla Owen, 1848 - even-toed ungulates see Order Cetartiodactyla Montgelard, Catzeflis & Douzery, 1997
   Order Chiroptera Blumenbach, 1779 - bats