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The region also boasts an entire endemic order, the tuataras (Order Rhynchocephalia).
The order Testudines includes turtles, the order Squamata includes lizards and snakes, the order Crocodylia contains crocodiles and alligators, and the order Rhynchocephalia contains the lizard-like tuataras.
A new herbivorous sphenodontid Rhynchocephalia: Reptilia from the Jurassic of Colorado.
A sphenodontine (Rhynchocephalia) from the Miocene of New Zealand and paleobiogeography of the tuatara (Sphenodon).
Tuatara (Sphenodon punctatus), which are unique to New Zealand, are the only survivors of the dinosaur-like reptile species Rhynchocephalia that became extinct about 60 million years ago.
Whether it has a free parietoquadrate arch I do not know, but it is probable that the genus should be referred to the Rhynchocephalia, in the neighborhood of PalsBohatteria Cred.