Tuatara vs. Tuatera

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Difference Between Tuatara and Tuatera
Tuataranoun
Either of two reptiles, Sphenodon punctatus and Sphenodon guntheri, native to New Zealand, that resemble lizards.
Tuataranoun
only extant member of the order Rhynchocephalia of large spiny lizard-like diapsid reptiles of coastal islands off New Zealand