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  • Dave Harmon, PW editor

Rockfall in Grand Canyon NP yields fossiled trackway of reptile footprints 310 million years old

Geologists have discovered a set of 28 footprints left behind by an ancient reptile approximately 310 million years ago in what is now Grand Canyon National Park.


The fossil trackway covers a boulder that rests along the Bright Angel Trail in Grand Canyon National Park.


http://www.sci-news.com/paleontology/reptile-footprints-grand-canyon-national-park-06592.html

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