Example image of eyePlorer eyePlorer map for 'Prototheria': Monotreme Taxon Taxonomy Class (biology) Mammal Cenozoic Cretaceous Echidna Platypus Eutheria Metatheria Clade Crown group Marsupial Thomas Henry Huxley Cladistics Infraclass (zoology) Order (biology) Theria Docodonta Mesozoic Morganucodon Multituberculata Triconodonta Australosphenida Placenta Akidolestes Dry Mesa Quarry Fruitafossor Morrison Formation
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