Mud-Trapped Herd Captures Evidence of Distinctive Dinosaur Sociality

@inproceedings{Varricchio2008MudTrappedHC,
  title={Mud-Trapped Herd Captures Evidence of Distinctive Dinosaur Sociality},
  author={David J. Varricchio and Paul C. Sereno and Zhao Xijin and Tan Lin and Jeffery A. Wilson and Gabrielle H. Lyon},
  year={2008}
}
A unique dinosaur assemblage from the Cretaceous beds of western Inner Mongolia preserves geologic and paleontologic data that clearly delineate both the timing and mechanism of death. Over twenty individuals of the ornithomimid Sinornithomimus dongi perished while trapped in the mud of a drying lake or pond, the proximity and alignment of the mired skeletons indicating a catastrophic mass mortality of a social group. Histologic examination reveals the group to consist entirely of immature… 
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