Oldest known T. Rex relative found in Utah

By Science News Staff, 10:20 AM November 6, 2013

Guest post by Erin Wayman

The earliest known relative of Tyrannosaurus rex has been unearthed. While working in southern Utah, paleontologists discovered fossils of a carnivorous dinosaur dating to roughly 80 million years ago. The researchers say the animal — named Lythronax argestes, or the gore king of the southwest — was an early member of the tyrannosaur family.

The approximately 8-meter-long dinosaur lived in Utah when western North America was an island, cut off from the rest of the cont...

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