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Re: bulldog tyrranosaurs
At 03:39 PM 2/4/97 +1100, Adam Yates wrote:
>A few days ago Tom Holtz made a comment about the "short snouted
>bulldogedness" of Albertosaurus sarcophagus. I found this intriguing
>because the skull I had been assuming represented the species (the skull
>called "A. arctunguis" by Greg Paul in PDOTW) certainly does not fit this
>description. I sent a post containing a mass of queries about this skull
>that never made it to the list (though it did go to Tom - Thankyou for
>your reply). Nevertheless I still have a few queries. 1. Where can you
>find a good illustration of true A. sarcophagus?
Carpenter's paper on tyrannosaurids in 1992 (in Mateer & Chen's Aspects of
Nonmarine Cretaceous Geology, China Ocean Press: a hard book to find, I
know) has a series of skulls from most tyrannosaurid taxa. Tracy Ford has
illustrations of A. sarcophagus skulls in Olshevsky's Historical
Dinosaurology. There is a reconstructed skull of A. sarcophagus
(unfortunately, with missing parts restored after T. rex in some regions) in
the collections of the AMNH, but it isn't on display...
>2. Does the rather short
>maxilla from the Tornillo Formation of Texas belong to A. sarcophagus (or
>does it at least have the same degree of short snoutedness)? I once made
>an illustration of a T rex skull (based on the AMNH specimen) but
>substituted in the shape of the Tornillo maxilla, the result was a
>grotesque bulldog like face indeed!
An interesting thought indeed! However, the Tornillo material is even more
truncated than the maxilla of A. sarcophagus.
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
"To trace that life in its manifold changes through past ages to the present
is a ... difficult task, but one from which modern science does not shrink.
In this wide field, every earnest effort will meet with some degree of
success; every year will add new and important facts; and every generation
will bring to light some law, in accordance with which ancient life has been
changed into life as we see it around us to-day."
--O.C. Marsh, Vice Presidential Address, AAAS, August 30, 1877