CLASS MAMMALIA
Subclass Prototheria
Order Monotremata
Subclass Theria
Infraclass Metatheria
Order Didelphimorphia
Order Paucituberculata
Order Microbiotheria
Order Dasyuromorphia
Order Peramelemorphia
Order Diprotodontia
Order Notoryctemorphia
Infraclass Theria
Order Insectivora
Order Scandentia
Order Macroscelidea
Order Dermoptera
Order Chiroptera
Order Primates
Order Xenarthra
Order Pholidota
Order Tubulidentata
Order Carnivora
Order Cetacea
Order Rodentia
Order Lagomorpha
Order Proboscidea
Order Hyracoidea
Order Sirenia
Order Perissodactyla
Order Artiodactyla
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SUBCLASS PROTOTHERIA
Order Monotremata
Family Tachyglossidae
Family Ornithorhynchidae
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