tuatara

English Thesaurus

1. only extant member of the order Rhynchocephalia of large spiny lizard-like diapsid reptiles of coastal islands off New Zealand (noun.animal)

hypernym	:	diapsid, diapsid reptile,
definition	:	reptile having a pair of openings in the skull behind each eye (noun.animal)

member meronym	:	genus sphenodon, sphenodon,
definition	:	coextensive with the order Rhynchocephalia: tuataras (noun.animal)