Class Mammalia Linnaeus, 1758 - mammals
Subclass Theria Parker & Haswell, 1897
see Supercohort Theria Parker & Haswell, 1897
01 Order Didelphimorphia Gill, 1872
02 Order Paucituberculata Ameghino, 1894
03 Order Microbiotheria Ameghino, 1889
04 Order Notoryctemorphia (Kirsch, 1977) Aplin & Archer, 1987
05 Order Dasyuromorphia (Gill, 1872) Aplin & Archer, 1987
06 Order Peramelemorphia Ameghino, 1889
07 Order Diprotodontia Owen, 1866
08 Order Afrosoricida Stanhope, 1998
09 Order Macroscelidea Butler, 1956 - elephant shrews
10 Order Tubulidentata Huxley, 1872 - aardvark
11 Order Hyracoidea Huxley, 1869 - hyraxes
12 Order Proboscidea Owen, 1859 - elephants
13 Order Sirenia Gill, 1872 - sea cows
14 Order Cingulata Illiger, 1811 - armadillos
15 Order Pilosa Flower, 1883 - sloths
16 Order Scandentia Wagner, 1855 - tree shrews
17 Order Dermoptera Dobson, 1883
18 Order Primates Linnaeus, 1758 - primates
19 Order Lagomorpha Brandt, 1855 - lagomorphs
20 Order Erinaceomorpha Gregory, 1910
see Suborder Erinaceomorpha Gregory, 1910
21 Order Soricomorpha Gregory, 1910
see Suborder Soricomorpha Gregory, 1910
22 Order Chiroptera Blumenbach, 1779 - bats
23 Order Pholidota Weber, 1904 - pangolins
24 Order Carnivora Bowdich, 1821 - carnivores
25 Order Perissodactyla Owen, 1848 - odd-toed ungulates
26 Order Artiodactyla Owen, 1848 - even-toed ungulates
see Order Cetartiodactyla Montgelard et al., 1997
27 Order Cetacea Brisson, 1762 - whales, dolphins, and porpoises
see Suborder Cetacea Brisson, 1762
28 Order Rodentia Bowdich, 1821 - rodents