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Tiny footprints, big discovery: Reptile tracks oldest ever found in Grand Canyon

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avatar Tiny footprints, big discovery: Reptile tracks oldest ever found in Grand Canyon
November 08, 2018 12:06PM
Geologists have discovered that a set of 28 footprints left behind by a reptile-like creature 310 million years ago are the oldest ever to be found in Grand Canyon National Park.

https://www.sciencedaily.com/releases/2018/11/181108142448.htm
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