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Raptorex mini me upends tyrannosaur evolution study
A 125 million year old dinosaur named Raptorex, found in northern China and described in Science, resembles T rex in jaws and speed but is eight feet long and weighs about 150 pounds. Lead author Paul Sereno argues this shows the tyrannosaur blueprint evolved in smaller bodies earlier than previously thought.
MENTIONED IN THIS ARTICLE
Washington Post
Washington
China
Science
Raptorex
T. Rex
University of Chicago
Paul Sereno