This Ancient Reptile Is Not a Lizard. Don’t Call It a Lizard

Fossil of a reptile from the late Jurassic period was found in Wyoming. The reptile is a rhynchocephalian, a group that diverged from lizards in the Triassic Period. The species is named Opisthiamimus gregori. It lived in the same area as the tuatara, which has three rows of teeth and a parietal eye in the center of its forehead and has the fastest-moving sperm of any reptile. Findings could shed light on the persistence of its living relative, the tuarara.

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