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Xu et al. reply

Nature volume 468, page E2 (04 November 2010) | Download Citation



Replying to Richard O. Prum Nature 468, 10.1038/nature09480

Prum1 identifies the unusual feathers in the smaller Similicaudipteryx specimen as immature, and suggests that the different morphologies preserved in the smaller and larger specimens represent different growth stages of a single feather type rather than successive feather generations of different types. Although this new proposal is very interesting, we do not agree that it is better supported by the available data than our original interpretation2.

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    Moulting tail feathers in a juvenile oviraptorisaur. Nature 468 10.1038/nature09480 (2010)

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    , & A new feather type in a nonavian theropod and the early evolution of feathers. Proc. Natl Acad. Sci. USA 106, 832–834 (2009)

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Author information


  1. *Key Laboratory of Evolutionary Systematics of Vertebrates, Institute of Vertebrate Paleontology & Paleoanthropology, Chinese Academy of Sciences, 142 Xiwai Street, Beijing 100044, China.

    • Xing Xu
  2. †Shandong Tianyu Museum of Nature, Pingyi, Shandong 273300, China

    • Xiaoting Zheng
  3. ‡Institute of Geology, Chinese Academy of Geological Sciences, 26 Baiwanzhuang Road, Beijing 100037, China

    • Hailu You


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Competing financial interests: declared none.

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