#genus_Sphenodon__Sphenodon  coextensive with the order Rhynchocephalia: tuataras
  supertype:  reptile_genus__reptilegenu  a genus of reptiles
  member:  tuatara
  member of:  order_Rhynchocephalia__Rhynchocephalia  tuataras; extinct forms from middle Triassic
     member of:  subclass_Lepidosauria__Lepidosauria  diapsid reptiles: lizards; snakes; tuataras
        member of:  class_Reptilia__Reptilia  class of cold-blooded air-breathing vertebrates with completely ossified skeleton and a body usually covered with scales or horny plates; once the dominant land animals
           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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