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Palaeontology

The beaks of ostrich dinosaurs

Abstract

Primitive ornithomimids, a ubiquitous group of specialized Cretaceous dinosaurs nested within a clade of predominantly carnivorous theropods, are known to have had teeth, whereas derived ornithomimids had an edentulous beak, which has prompted speculation about their dietary habits1. Here we describe two new ornithomimid specimens in which soft-tissue structures of the beak have been preserved. These creatures probably used their beaks to strain food sediment in an aqueous environment, rather than for predation on large animals.

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Figure 1: Two ornithomimid specimens, showing preservation of soft-tissue structures of the beak.
Figure 2

COURTESY OF MIKE SKREPNICK

References

  1. 1

    Osmólska, H. in Encyclopedia of Dinosaurs (eds Currie, P. J. & Padian, K.) 499–503 (Academic, New York, 1997).

    Google Scholar 

  2. 2

    Sternberg, C. A. Can. Field-Nat. 47, 79–83 (1933).

    Google Scholar 

  3. 3

    Osmólska, H., Roniewicz, E. & Barsbold, R. Palaeontol. Polonica 27, 103–143 (1972).

    Google Scholar 

  4. 4

    Zweers, G. A., Gerritsen, A. F. & van Kraneburg-Voogd, P. J. in Contributions to Vertebrate Morphology vol. 3 (eds Hecht, M. K & Szalay, F. S.) 1–109 (Karger, Basel, 1977).

    Google Scholar 

  5. 5

    Goodman, D. C. & Fisher, H. I. Functional Anatomy of the Feeding Apparatus in Waterfowl (Aves: Anatidae) 1–193 (South. Illinois Univ. Press, Carbondale, 1962).

    Google Scholar 

  6. 6

    Osborn, H. F. Am. Mus. Bull. 35, 733–771 (1916).

    Google Scholar 

  7. 7

    Kobayashi, Y. et al. Nature 402, 480–481 (1999).

    CAS  Article  Google Scholar 

  8. 8

    Jerzykiewicz, T. & Russell, D. A. Cretaceous Res. 12, 345–377 (1991).

    Article  Google Scholar 

  9. 9

    Currie, P. J. & Eberth, D. A. Cretaceous Res. 14, 127–144 (1993).

    Article  Google Scholar 

  10. 10

    Eberth, D. A. in Encyclopedia of Dinosaurs (eds Currie, P. J. & Padian, K.) 379–384 (Academic, New York, 1997).

    Google Scholar 

  11. 11

    Makovicky, P. J. & Norell, M. A. Am. Mus. Novitates 3247, 1–16 (1998).

    Google Scholar 

Download references

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Correspondence to Mark A. Norell.

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Norell, M., Makovicky, P. & Currie, P. The beaks of ostrich dinosaurs. Nature 412, 873–874 (2001). https://doi.org/10.1038/35091139

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