#subclass_Prototheria__Prototheria echidnas; platypus supertype: class__clas (biology) a taxonomic group containing one or more orders member: order_Monotremata member of: class_Mammalia__Mammalia warm-blooded vertebrates characterized by mammary glands in the female member of: subphylum_Vertebrata__Vertebrata__Craniata__subphylum_Craniata fishes; amphibians; reptiles; birds; mammals member of: phylum_Chordata__Chordata comprises true vertebrates and animals having a notochord member of: kingdom_Animalia__Animalia__animal_kingdom taxonomic kingdom comprising all living or extinct animals
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