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Feather Quill Knobs in the Dinosaur Velociraptor

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Science  21 Sep 2007:
Vol. 317, Issue 5845, pp. 1721
DOI: 10.1126/science.1145076
  • Fig. 1.

    (A) Dorsal view of right ulna of Velociraptor IGM 100/981. (B) Detail of red box in (A), with arrows showing six evenly spaced feather quill knobs. In (B), a cast of IGM 100/981 was used. (C) Dorsal view of right ulna of a turkey vulture (Cathartes). (D) Same view of Cathartes as in (C) but with soft tissue dissected to reveal placement of the secondary feathers and greater secondary coverts relative to the quill knobs. (E) Detail of Cathartes, with one quill completely removed to reveal quill knob. (F) Same view as in (E) but with quill reflected to the left to show placement of quill, knob, and follicular ligament. Follicular ligament indicated with arrow.

Additional Files


  • Feather Quill Knobs in the Dinosaur Velociraptor
    Alan H. Turner, Peter J. Makovicky, Mark A. Norell

    Supporting Online Material

    This supplement contains:
    Materials and Methods
    Fig. S1
    References

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