Digital Chosunilbo (English Edition) : Daily News in English About Korea: "Scientists Uncover Earliest Known Ancestor to Tyrannosaurus Rex
Guanlong wucaii
Chinese and U.S. scientists have uncovered the earliest known ancestor to the giant, fearsome Tyrannosaurus rex dinosaur. This 160-million-year-old primitive tyrannosaur was much smaller and looks more like a predecessor to a rooster than a T-rex."
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