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At 03:40 PM 9/28/97 -0700, Glenn wrote:
>> Note: most references to "Albertosaurus" are inaccurate. They in fact are
>> specimens of the genus Gorgosaurus, a distinct form. True Albertosaurus (A.
>> sarcophagus) is best known from the Horseshoe Canyon Formation of Alberta,
>> which has very few fossil-bearing equivalents in the U.S. (the Meeteetsee
>> Fm. being one).
llege Park, MD 20742 Fax: 301-314-9661
>Thanks for the info. One lister was kind enough to put me on to the
>DINOSAUR UNIVERSITY (AUBURN UNIVERSITY) where Dr. King describes an
>Albertosaurus find in 1982 around Montgomery, Alabama. As a professional
>paleontologist, is there contention that this find may be something
>other than Albertosaurus? Let me know what you think if you get a
I am, in fact, one of the very, very few professional tyrannosaurid
Almost every reference to "Albertosaurus" between 1970 and the present is
actually to Gorgosaurus. I have not seen (in person) the Alabama specimen,
so I can't say for certain, but chances are pretty good it is a Gorgosaurus
rather than an Albertosaurus (although it could be the latter, or even
another tyrannosaurid taxon).
Good cranial material would help resolve this, although there are a few
postcranial synapomorphies in Gorgosaurus.
Thomas R. Holtz, Jr.
Vertebrate Paleontologist Webpage: http://www.geol.umd.edu
Dept. of Geology Email:firstname.lastname@example.org
University of Maryland Phone:301-405-4084
College Park, MD 20742 Fax: 301-314-9661