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Sinosaurus from southwestern China

  • Author / Creator
    Xing, Lida
  • Early Jurassic Sinosaurus triassicus (=“Dilophosaurus sinensis”) is the
    earliest large dinosaur predator from China; however, all the specimens of this
    species have remained poorly know. The Hewanzi specimen described in this
    thesis is the only well prepared one. Morphology of the crest and braincase of the
    Hewanzi specimen indicates that it possesses advanced characteristics that are
    more developed than in Dilophosaurus. A phylogenetic analysis shows
    Sinosaurus and Cryolophosaurus emerge as more derived theropods; they were
    recovered as more closely related to Averostra than to Coelophysis and
    Dilophosaurus. These results may suggest the Hewanzi specimen represents
    another species of Sinosaurus. A finite element analysis (FEA) suggests the
    structural features of the crest in Dilophosaurus and Sinosaurus cannot play a
    mechanical role during combat. In addition, a remodeled alveolus in the maxilla
    of Sinosaurus is the first confirmed example of dental pathology in a dinosaur.

  • Subjects / Keywords
  • Graduation date
    Fall 2012
  • Type of Item
    Thesis
  • Degree
    Master of Science
  • DOI
    https://doi.org/10.7939/R3HP8F
  • License
    This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for non-commercial purposes. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.