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Re:



--- Josh Smith <smithjb@sas.upenn.edu> wrote:
> Quoting henry mendoza <hxmendoza@yahoo.com>:
> 
> > Hi Dr. Holtz
> > 
> > Thought:
> > 
> > No one has ever made mention of a feature on
> > Daspletosaurs teeth which I believe may be
> diagnostic.
> > 
> > A few years back I purchased a Cast of a
> > Daspletosaurus tooth from the Museum of the
> Rockies. I
> > immediately noticed how far down to the base the
> > anterior serration line goes down, about 4/5 too
> the
> > level of the end of the posterior serrations.
> > 
> > Since then I have noticed this same feature on all
> the
> > supposed Dapletosaurus teeth and tooth cast that i
> hve
> > looked at. T. rex and albertosaur/gorgosaur teeth
> > predominantly have serations that either go down
> > half-way to the base or 2/3 the way down in
> relation
> > to the posterior serration. In a close up, face on
> pic
> > i saw of the type Daspletosaurus mount's skull I
> can
> > clearly see this same trait!
> > 
> > Yet I have never seen thisissue discussed
> anywhere! 
> > 
> > Comments?
> > 
> > Henry Mendoza
> > 
> This IS an interesting feature to be sure.  Too bad
> it isn't restrictred 
> to tyrannosaurids....
> 
> -J
> 
> 
> ----
> Josh Smith
> Department of Earth and Environmental Science
> University of Pennsylvania
> 240 South 33rd Street
> Philadelphia, PA 19104-6316
> smithjb@sas.upenn.edu
> Project Director, Bahariya Dinosaur Project
> (http://www.egyptdinos.org)
> 
> NOTE: Currently in residence at:
> Department of Anthropology
> Harvard University
> Please address all correspondence and mailings to:
> 18 Traymore Street
> Cambridge, MA 02140
> NEW OFFICE PHONE 617.495.1966


Well I only meant it as a way to distinguish
Daspletosau teeth from the other Tyrannosaurid teeth.

Henry Mendoza

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