Scientists propose Tyrannosaurus had three species, not just 'rex' - Toronto Sun

WASHINGTON — A group of researchers is proposing that Tyrannosaurus, the most famous of all dinosaurs and the ultimate apex predator, actually includes three…

Author of the article: The head of an approximately 67 million-year-old Tyrannosaurus skeleton, one of the largest, most complete ever discovered and named "STAN" after paleontologist Stan Sacrison … [+5852 chars]

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