genus Sphenodon


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Noun1.genus Sphenodon - coextensive with the order Rhynchocephalia: tuatarasgenus Sphenodon - coextensive with the order Rhynchocephalia: tuataras
reptile genus - a genus of reptiles
order Rhynchocephalia, Rhynchocephalia - tuataras; extinct forms from middle Triassic
Sphenodon punctatum, tuatara - only extant member of the order Rhynchocephalia of large spiny lizard-like diapsid reptiles of coastal islands off New Zealand
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