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Smithsonian National Museum of Natural History
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Map of the World

Paleobiology

Were there dinosaurs in your backyard?

This map shows (in green and dark blue) the regions of North America where rocks that formed during the Age of Dinosaurs — 225 to 65.6 million years ago, are exposed at the surface of the Earth. The red dots mark all the dinosaur discoveries ever reported in the scientific literature.

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