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RE: Tyrannosaur specimen identification?
> From: owner-DINOSAUR@usc.edu [mailto:owner-DINOSAUR@usc.edu]
> On Behalf Of Bruce Woollatt
> Hi all;
> I'm wondering about the status of a particular tyrannosaur
> skull: AMNH 5434. It is identified as Gorgosaurus libratus in
> Mathew and Brown 1923 (see it here
> http://digitallibrary.amnh.org/dspace/handle/2246/3207 ) and
> in Guilmore's 1946 G.lancensis paper, but I'm wondering if
> it's actually Daspletosaurus. The tooth count seems high for
> Gorgo and there is no suborbital process on the postorbital
> bone. It looks a lot like the Field Museum's FMNH PR308 which
> used to be classified as Albertosaurus libratus but is now
> considered (I believe) Daspletosaurus sp.
It ought to look a lot like FMNH PR308; it IS now FMNH PR308 (its new number
when the Field acquired the specimen from the AMNH). And yes, Carr
demonstrated it was a Daspletosaurus skull.
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
Faculty Director, Science & Global Change 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