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nountuataras; extinct forms from middle Triassic
Similar:
type of:
Definition that contains rhynchocephalia
- tuatara only extant member of the order Rhynchocephalia of large spiny lizard-like diapsid reptiles of coastal islands off New Zealand
- genus sphenodon coextensive with the order Rhynchocephalia: tuataras
- sphenodon coextensive with the order Rhynchocephalia: tuataras
- sphenodon punctatum only extant member of the order Rhynchocephalia of large spiny lizard-like diapsid reptiles of coastal islands off New Zealand