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Dinosaur Discoveries

Dinosaur Discoveries

Prehistoric Shark Species Found in Arizona

Several remains of primitive shark’s teeth, with at least three of the teeth dating back from 270 million years ago, were discovered in what is known as the Kaibab Formation of northern Arizona. It is believed that the three sharks range from about 3 feet to 20 feet long, and that Arizona was home to a very diverse shark population in the Cretaceous period.

For more on this discovery, visit Discovery News.

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