Mammals (Mammalia) is a biological class of the kingdom Animalia and phylum Chordata.
Tubulidentata
Afrosoricida
Didelphimorphia
Artiodactyla
Chiroptera
Carnivora
Cetacea
Cingulata
Dasyuromorphia
Sirenia
Macroscelidea
Proboscidea
Erinaceomorpha
Dermoptera
Hyracoidea
Notoryctemorphia
Diprotodontia
Microbiotheria
Monotremata
Perissodactyla
Pholidota
Paucituberculata
Peramelemorphia
Primates
Lagomorpha
Rodentia
Pilosa
Soricomorpha
Scandentia
Amphibia
Aves
Chondrichthyes
Coelacanthi
Myxini
Cephalaspidomorphi
Leptocardii
Appendicularia
Dipnoi
Mammalia
Pteraspidomorphi
Actinopterygii
Reptilia
Ascidiacea
Thaliacea