A new troodontid dinosaur from China with avian-like sleeping posture

@article{Xu2004ANT,
  title={A new troodontid dinosaur from China with avian-like sleeping posture},
  author={Xing Xu and Mark Allen Norell},
  journal={Nature},
  year={2004},
  volume={431},
  pages={838-841}
}

• Xing Xu, Mark Allen Norell
• Published in Nature 2004
• DOI:10.1038/nature02898

Discovering evidence of behaviour in fossilized vertebrates is rare. Even rarer is evidence of behaviour in non-avialan dinosaurs that directly relates to stereotypical behaviour seen in extant birds (avians) and not previously predicted in non-avialan dinosaurs1,2. Here we report the discovery of a new troodontid taxon from the Early Cretaceous Yixian Formation of western Liaoning, China. Numerous other three-dimensionally preserved vertebrate fossils have been recovered recently at this… CONTINUE READING

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