Face Biting on a Juvenile Tyrannosaurid and Behavioral Implications Peterson, J. E. ; Henderson, M. D. ; Scherer, R. P. ; Vittore, C. P. Abstract Publication: PALAIOS Pub Date: November 2009 DOI: 10.2110/palo.2009.p09-056r Bibcode: 2009Palai..24..780P