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Daspletosaur teeth

> From: owner-dinosaur@usc.edu [mailto:owner-dinosaur@usc.edu]On Behalf Of
> Michael Schmidt
> there is a 100% (as far as I know) diagnostic trait inherent in 
> Daspletosaur
> teeth and not seen in other tyrranasaur teeth....
> if you look at the face of the tooth, right along the edge next to the
> serration, there is a "wrinkle" that extends out ever so slightly.
> To my knowledge, this wrinkle is seen only in Daspletosaur teeth.  Once
> you've seen it, you wonder how you could have missed it so many times
> before!!

It shows up in some _T. rex_ teeth, too.

                Thomas R. Holtz, Jr.
                Vertebrate Paleontologist
Department of Geology           Director, Earth, Life & Time Program
University of Maryland          College Park Scholars
                College Park, MD  20742       
Phone:  301-405-4084    Email:  tholtz@geol.umd.edu
Fax (Geol):  301-314-9661       Fax (CPS-ELT): 301-405-0796