New York University Leads Team Of Researchers In Finding 38,000 Year-Old Limestone Engraving

Jan 31, 2017 PM EST A team of anthropologists have found a 38,000-year-old limestone engraving.

Ancient Carvings on Limestone Boulders is the Oldest Petroglyphs in North America, Study

Aug 21, 2013 AM EDT The oldest known petroglyphs on the west side of Nevada's dried-up Winnemucca Lake may be nearly 15,000 years old, according to a new analysis by researchers at the University of Colorado Boulder. The ...

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