News of the WeekPaleontology

Early Tyrannosaur Was Small But Well Armed

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Science  18 May 2001:
Vol. 292, Issue 5520, pp. 1278-1279
DOI: 10.1126/science.292.5520.1278b

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For all the fame of Tyrannosaurus rex and its relatives, their origins have been difficult to pin down. Now paleontologists have unveiled a skeleton of a primitive tyrannosauroid that backs up what many have suspected: The hulking predators evolved from smaller, long-armed creatures with grasping hands.