Class Mammalia Linnaeus, 1758 - mammals
01 Order Monotremata Bonaparte, 1837 - monotremes
02 Order Didelphimorphia Gill, 1872
03 Order Paucituberculata Ameghino, 1894
04 Order Microbiotheria Ameghino, 1889
05 Order Dasyuromorphia (Gill, 1872) Aplin & Archer, 1987
06 Order Peramelemorphia Ameghino, 1889
07 Order Notoryctemorphia (Kirsch, 1977) Aplin & Archer, 1987
08 Order Diprotodontia Owen, 1866
09 Order Xenarthra Cope, 1889 - xenarthrans
see Magnorder Xenarthra Cope, 1889
10 Order Insectivora Cuvier, 1817 - insectivores
see Grandorder Lipotyphla (Haeckel, 1866) McKenna, 1975
11 Order Scandentia Wagner, 1855 - tree shrews
12 Order Dermoptera Dobson, 1883
13 Order Chiroptera Blumenbach, 1779 - bats
14 Order Primates Linnaeus, 1758 - primates
15 Order Carnivora Bowdich, 1821 - carnivores
16 Order Cetacea Brisson, 1762 - whales, dolphins, and porpoises
see Suborder Cetacea Brisson, 1762
17 Order Sirenia Gill, 1872 - sea cows
18 Order Proboscidea Owen, 1859 - elephants
19 Order Perissodactyla Owen, 1848 - odd-toed ungulates
20 Order Hyracoidea Huxley, 1869 - hyraxes
21 Order Tubulidentata Huxley, 1872 - aardvark
22 Order Artiodactyla Owen, 1848 - even-toed ungulates
see Order Cetartiodactyla Montgelard et al., 1997
23 Order Pholidota Weber, 1904 - pangolins
24 Order Rodentia Bowdich, 1821 - rodents
25 Order Lagomorpha Brandt, 1855 - lagomorphs
26 Order Macroscelidea Butler, 1956 - elephant shrews