#monotreme__egglayingmammal  the most primitive mammals comprising the only extant members of the subclass Prototheria
  supertype:  #prototherian  primitive oviparous mammals found only in Australia Tasmania and New Guinea
  subtype:  #echidna__spiny_anteater__spinyanteater__anteater  burrowing spine-covered monotreme of Australia having a long snout and claws for hunting ants and termites
  subtype:  #spiny_anteater__spinyanteater__echidna__anteater  New Guinea echidnas
  subtype:  #duck-billed_platypus__platypus__duckbill__duckbilled_platypus__Ornithorhynchus_anatinus  small densely furred aquatic monotreme of Australia and Tasmania having a broad bill and tail and webbed feet; only species in the family Ornithorhynchidae

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