Mammals (Mammalia) is a biological class of the kingdom Animalia and phylum Chordata.
Tubulidentata
Didelphimorphia
Artiodactyla
Chiroptera
Carnivora
Cetacea
Sirenia
Macroscelidea
Proboscidea
Dermoptera
Hyracoidea
Notoryctemorphia
Diprotodontia
Perissodactyla
Pholidota
Primates
Lagomorpha
Rodentia
Pilosa
Scandentia
Amphibia
Aves
Chondrichthyes
Myxini
Cephalaspidomorphi
Leptocardii
Dipnoi
Mammalia
Actinopterygii
Reptilia