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Cast of a Lythronax argestes

U.S. Department of the Interior Museum Program

U.S. Department of the Interior Museum Program

This tyrannosaurid theropod dinosaur lived around 80.6 to 79.9 million years ago. It was carnivorous and an adult was probably over 20 feet in length. This dinosaur was excavated on the Bureau of Land Management's Grand Staircase-Escalante National Monument in Utah. The original specimen is curated for BLM by the Natural History Museum of Utah, catalog #UMNH 20200.

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