News of the WeekPaleontology

T. rex Clan Evolved Head First

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Science  08 Oct 2004:
Vol. 306, Issue 5694, pp. 211
DOI: 10.1126/science.306.5694.211a

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Summary

The most primitive tyrannosauroid yet discovered, described this week in Nature, has revealed the basic blueprint from which Tyrannosaurus rex and its kin evolved.