Biomechanical modeling and sensitivity analysis of bipedal running ability. II. Extinct taxa

  title={Biomechanical modeling and sensitivity analysis of bipedal running ability. II. Extinct taxa},
  author={John R. Hutchinson},
  journal={Journal of Morphology},
  • J. Hutchinson
  • Published 1 October 2004
  • Environmental Science, Biology
  • Journal of Morphology
Using an inverse dynamics biomechanical analysis that was previously validated for extant bipeds, I calculated the minimum amount of actively contracting hindlimb extensor muscle that would have been needed for rapid bipedal running in several extinct dinosaur taxa. I analyzed models of nine theropod dinosaurs (including birds) covering over five orders of magnitude in size. My results uphold previous findings that large theropods such as Tyrannosaurus could not run very quickly, whereas… 
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