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Chip Chick on MSNAt A Site In Northeastern Brazil, Prehistoric Rock Art And 140 Million-Year-Old Dinosaur Footprints Are Brought Together "Like No Archaeological Or Paleontologi…At a site in northeastern Brazil, there is prehistoric rock art, and footprints made long ... while the long-necked sauropods ...
At first glance, landscapes like the Great Plains and the Rockies may seem unchanging, but over geological time scales, ...
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