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Nature 440, 287-288 (16 March 2006) | doi:10.1038/440287a; Published online 15 March 2006

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Palaeontology: Scales, feathers and dinosaurs

Xing Xu1

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A fossil dinosaur that 'nests' with feathered relations in the dinosaur phylogenetic tree did not, it seems, have feathers. The discovery will encourage a re-evaluation of feather evolution.

Only birds have feathers — or so we thought until the discovery of fossils of feathered dinosaurs in China and elsewhere1. Since then, palaeontologists and biologists have together been painting a simple picture of feather evolution based on evidence from fossils and from developmental biology.

  1. Xing Xu is at the Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, 142 Xiwai Street, Beijing 100044, China.
    Email: xu.xing@ivpp.ac.cn

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