Hind Wings in Basal Birds and the Evolution of Leg Feathers

  title={Hind Wings in Basal Birds and the Evolution of Leg Feathers},
  author={Xiao-ting Zheng and Z. Zhou and Xiao-li Wang and Fucheng Zhang and Xiaomei Zhang and Yan Wang and Guangjin Wei and S. Wang and Xing Xu},
  pages={1309 - 1312}
  • Xiao-ting Zheng, Z. Zhou, +6 authors Xing Xu
  • Published 2013
  • Medicine, Biology
  • Science
  • Four-Winged Birds? Recently, nonavialan dinosaurs with feathers on their fore- and hindlimbs have been described. Zheng et al. (p. 1309) describe eleven basal avialan fossils with clear evidence of feathered hindlimbs. Together these fossils show that early avialans possessed four wings, rather than two. A gradual reduction in hindlimb feathering eventually yielded the two-wing condition in today's birds. Such a transition may have accompanied a locomotory decoupling of the fore- and hindlimbs… CONTINUE READING
    81 Citations

    Topics from this paper

    Feathers Before Flight
    • 37
    Mosaic evolution in an asymmetrically feathered troodontid dinosaur with transitional features
    • 41
    • PDF


    Biplane wing planform and flight performance of the feathered dinosaur Microraptor gui
    • 75
    • PDF
    Four-Winged Dinosaurs, Bird Precursors, or Neither?
    • 16
    • PDF
    Avian skin development and the evolutionary origin of feathers.
    • R. Sawyer, L. W. Knapp
    • Biology, Medicine
    • Journal of experimental zoology. Part B, Molecular and developmental evolution
    • 2003
    • 118
    Discovery of an ornithurine bird and its implication for Early Cretaceous avian radiation.
    • Z. Zhou, F. Zhang
    • Biology, Medicine
    • Proceedings of the National Academy of Sciences of the United States of America
    • 2005
    • 82
    • PDF