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| only extant member of the order Rhynchocephalia of large spiny lizard-like diapsid reptiles of coastal islands off New Zealand ❲Sphenodon punctatum❳ | ||||
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| coextensive with the order Rhynchocephalia: tuataras ❲Sphenodon❳ | ||||
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| a genus of anguid lizards commonly referred to as alligator lizards ❲Gerrhonotus❳ |