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Science 24 September 1999:
Vol. 285. no. 5436, pp. 2052 - 2053
DOI: 10.1126/science.285.5436.2052
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PALEONTOLOGY:
T. rex Was Fierce, Yes, But Feathered, Too

Tim Appenzeller

A new "feathered" fossil, this one a close relative of Velociraptor, adds to evidence that many predatory dinosaurs had some kind of plumage, which may have served as insulation. To some, it dramatically underscores the proposed evolutionary link between dinosaurs and birds. But a small, energetic band of dissenters contends that the halos of fibers found around several of the crucial fossils, including the latest one, are just collagen.

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Lessons From A Tyrannosaur: The Ambassadorial Role Of Paleontology.
(2003)
Palaios 18, 475-476
Phylogenetic Context for the Origin of Feathers.
S. S. Sumida and C. A. Brochu (2000)
Integr. Comp. Biol. 40, 486-503
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Science. ISSN 0036-8075 (print), 1095-9203 (online)