Re: Albertosaurus/Gorgosaurus (Re: Re: allosaur furcula)

[NJPharris@aol.com]

In a message dated 97-06-05 10:29:37 EDT, th81@umail.umd.edu (Thomas R.
Holtz, Jr.) writes:

> >If anyone does have the book The 
>  >Illustrated Encyclopedia of Dinosaurs, bu Dr. David Norman. In the 
>  >tyrannosaurid pages-the drawing of a juvenile Albertosaur,
>  
>  That particular drawing is NOT based on any real specimens (more's the
>  pity), but is an extrapolation of what a small Gorgosaurus libratus would
>  look like.

I was under the impression that this extrapolation was based upon the
(likely) juvenile specimens included in "Gorgosaurus" sternbergi.  These
specimens seem to belong to the shallow-jawed, boxy-headed North American
tyrannosaur with forwardly-directed lacrimal horns, which is not Gorgosaurus
(I don't think it's Albertosaurus, either, although for all I know it could
be--has Bakker written that paper yet?).

Nick Pharris
Olympia, WA