From: firstname.lastname@example.org [mailto:email@example.com]
On Behalf Of Jamie Stearns
Sent: Wednesday, December 19, 2007 9:32 AM
Subject: Re: Evolution of tyrannosauroid bite power
I'm not sure about when the strong bite power evolved,but I
do seem to recall that Dilong and other early tyrannosaurs
were mainly identified as such from their cranial anatomy,
which would suggest that a distinctive skull was one of the
first things to evolve, and this may have some bearing on
when the jaw structure developed. However, I've yet to really
look at the structure of Dilong's jaws or anything for
evidence of its biting power.
The strong tyrannosaur bite did seem to evolve early on, although in
Snively et al. (2006) discuss this to some degree in:
Snively, E., D.M. Henderson & D.S. Phillips. 2006. Fused and vaulted
of tyrannosauroid dinosaurs: implications for cranial strength and feeding
mechanics. Acta Palaeontologica Polonica 51:435-454.
(Available for free online at http://app.pan.pl/acta51/app51-435.pdf)
Thomas R. Holtz, Jr.
Email: firstname.lastname@example.org Phone: 301-405-4084
Office: Centreville 1216
Senior Lecturer, Vertebrate Paleontology
Dept. of Geology, University of Maryland
Faculty Director, Earth, Life & Time Program, College Park Scholars
Mailing Address: Thomas R. Holtz, Jr.
Department of Geology
Building 237, Room 1117
University of Maryland
College Park, MD 20742 USA