RE: paleoart idea!

["Thomas R. Holtz, Jr." <tholtz@geol.umd.edu>]

> -----Original Message-----
> From: owner-dinosaur@usc.edu [mailto:owner-dinosaur@usc.edu]On Behalf Of
> chris brochu
>
> > What about the Maastrichtion sauropods _Alamosaurus_ (North
> Horn Fm, Utah)
> > and _Dyslocosaurus_ (Lance Fm, Wyoming)?
>
>
> I can't comment on Dyslocosaurus, as I don't know much about it.  But I
> was including the North Horn along with "non-northwestern US" localities
> - Alamosaurus seems not to have gotten as far north as the area
> currently producing the Hell Creek or Scollard Formations, which is
> where T. rex is primarily known from.
>
_Dyslocosaurus_ IS from Wyoming.  However, the exact stratum and location
from which it was collected is uncertain (hence "dys- loco-", "bad place
[data]"): it MIGHT be from the Lance, or it MIGHT be from the Morrison (ooh,
big surprise, a Morrison sauropod! :-).

In any case, sauropod teeth do not seem to occur in the typical northwestern
Interior units in which _T. rex_ is common.

                Thomas R. Holtz, Jr.
                Vertebrate Paleontologist
Department of Geology           Director, Earth, Life & Time Program
University of Maryland          College Park Scholars
                College Park, MD  20742
http://www.geol.umd.edu/pages/faculty/HOLTZ/holtz.html
http://www.inform.umd.edu/SCHOLAR/programs/elt.html
Phone:  301-405-4084            Email:  tholtz@geol.umd.edu
Fax (Geol):  301-314-9661       Fax (CPS-ELT): 301-405-0796