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Re: Questions of Various Kinds

Tim Williams wrote (quoting Rachel Clark):

>> 14) Is _Albertosaurus_ the valid generic name for the species "A. libratus"?
>The type species for _Albertosaurus_ (_A. sarcophagus_) is a 
>fragmentary skull which some researchers believe is too poorly 
>preserved to diagnose a valid genus.  This throws the referral of all 
>other _Albertosaurus_ species into doubt.  Apparently the whole 
>_Albertosaurus_ mess is being sorted out at the moment, and a paper 
>is (reputedly) in the pipeline.

Actually, although incomplete, the skull of A. sarcophagus is pretty good,
and shows many unique features.

Thomas R. Holtz, Jr.
Vertebrate Paleontologist     Webpage: http://www.geol.umd.edu
Dept. of Geology              Email:th81@umail.umd.edu
University of Maryland        Phone:301-405-4084
College Park, MD  20742       Fax:  301-314-9661

"There are some who call me...  Tim."
-- Tim the Enchanter, "Monty Python and the Holy Grail"
---------- subtitle --[Monty Python ik den Holy Grailen]

"Tim?!?  They called me TIM?!?!"
-- Tom the Paleontologist, on seeing "The Ultimate Guide to T. rex" :-)