Brief Communications

Nature 416, 388 (28 March 2002) | doi:10.1038/416388a

Biomechanics (Communication arising): Prey attack by a large theropod dinosaur

E. J. Rayfield, D. B. Norman & P. Upchurch

Our analysis showed that the cranial strength of Allosaurus far exceeded the stresses that could have been generated by its jaw-closing muscles, and we suggested that this disparity might be explained if this dinosaur had adopted a 'slash-and-tear' mode of attack. Frazzetta and Kardong raise three points in criticism of this suggested mode of feeding.

  1. Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EQ, UK

Correspondence to: e-mail: Email: eray@esc.cam.ac.uk