''Navajosphenodon'' is an extinct genus of

sphenodontid Rhynchocephalia (; ) is an order of lizard-like reptiles that includes only one living species, the tuatara (''Sphenodon punctatus'') of New Zealand. Despite its current lack of diversity, during the Mesozoic rhynchocephalians were a diverse gro ...

reptile from the Early Jurassic Kayenta Formation of Arizona, United States. It is known from a fully articulated skeleton, and is similar in many aspects to the extant

tuatara Tuatara (''Sphenodon punctatus'') are reptiles endemic to New Zealand. Despite their close resemblance to lizards, they are part of a distinct lineage, the order Rhynchocephalia. The name ''tuatara'' is derived from the Māori language and ...

, both belonging to the Sphenodontinae, including sharing a complete lower temporal bar. It is one of the oldest known sphenodontines.

References

Jurassic lepidosaurs Sphenodontia Fossil taxa described in 2022 {{Rhynchocephalia, state=autocollapse