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Science 18 May 2001:
Vol. 292. no. 5520, pp. 1278 - 1279
DOI: 10.1126/science.292.5520.1278b
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News of the Week

PALEONTOLOGY:
Early Tyrannosaur Was Small But Well Armed

Erik Stokstad

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.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)