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A lower jaw from a Cretaceous parrot

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  • Thomas A. Stidham

    (Museum of Paleontology, and Museum of Vertebrate Zoology, University of California, Berkeley)

Abstract

All known Cretaceous bird fossils representing modern higher taxa are from the aquatic groups Anseriformes1,3, Gaviiformes4,5, Procellariiformes1 and Charadriiformes1,6. Here I describe a toothless avian dentary symphysis (fused jawbone) from the latest Cretaceous of Wyoming, United States. This symphysis appears to represent the oldest known parrot and is, to my knowledge, the first known fossil of a ‘terrestrial’ modern bird group from the Cretaceous. The existence of this fossil supports the hypothesis, based on molecular divergence data7,8, that most or all of the major modern bird groups were present in the Cretaceous.

Suggested Citation

  • Thomas A. Stidham, 1998. "A lower jaw from a Cretaceous parrot," Nature, Nature, vol. 396(6706), pages 29-30, November.
    • Handle: RePEc:nat:nature:v:396:y:1998:i:6706:d:10.1038_23841
    DOI: 10.1038/23841
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