The NY Times reports:
Chinese and American scientists have discovered what appears to be the granddaddy of all tyrannosaurs, a primitive crested dinosaur that lived 160 million years ago in northwestern China. The scientists announced today that an analysis of two fossil specimens suggested that they were remains of the most primitive tyrannosaur known or the first branch on the family tree leading to Tyrannosaurus rex, the exemplar of tooth and claw predation in the age of reptiles.
To read more:
http://www.iht.com/articles/2006/02/09/healthscience/web.0209.dino.php
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