Tuatara body plan uses the same model for 190 million years

[DavidBrown]

A newly analyzed 190 million year old sphenodon fossil from Arizona reveals that the basic body plan now used by the living tuatara has no changed much from its ancestor.

Fossil Reveals Secrets of One of Nature’s Most Mysterious Reptiles

 

[UngulateNerd92]

A newly analyzed 190 million year old sphenodon fossil from Arizona reveals that the basic body plan now used by the living tuatara has no changed much from its ancestor.

Fossil Reveals Secrets of One of Nature’s Most Mysterious Reptiles

That is fascinating, thank you for sharing this! To be honest, despite living in Arizona, I wasn't aware of any sphenodon fossils ever present in the Grand Canyon State. I want to read more about this...