Twenty years since it was found in Argentina, a fossil of a 231.4-million-year-old lepidosaur has been described in detail by paleontologists. This animal has features place it before the split between lizards, snakes, and sphenodonts (a branch of reptiles that today only includes the strange tuatara). The fossilized…
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Source : Intriguing Fossil Reptile Offers Clues to the Origin of Snakes and Lizards
