New tyrannosaur species discovered in Utah

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Dinosaur Discovery-Utah
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Dinosaur Discovery-Utah
A new species of tyrannosaur unearthed in Grand Staircase-Escalante National Monument in southern Utah is revealed at the Utah Museum of Natural History Museum in Salt Lake City by Dr. Mark Loewen, Wednesday, Nov. 6, 2013. Paleontologists unveiled a new dinosaur discovered four years ago that proves giant tyrant dinosaurs like the Tyrannosaurus rex were around 10 million years earlier than previously believed. (AP Photo/The Salt Lake Tribune, Al Hartmann)