From: "Thomas R. Holtz, Jr." <tholtz@geol.umd.edu>
Reply-To: tholtz@geol.umd.edu
To: <kinman@hotmail.com>, <dinosaur@usc.edu>
Subject: RE: Troodon eggs
Date: Tue, 29 Aug 2000 17:35:02 -0400
> From: owner-dinosaur@usc.edu [mailto:owner-dinosaur@usc.edu]On Behalf Of
> Ken Kinman
>
> I have not yet read the paper cited below, but wonder if
> anyone knows
> if their conclusions have been challenged. Particularly the conclusion
that the "non-ornithoid" eggs they found are troodontids.
Would be difficult to discount, as these eggs contain embryonic remains of
troodontids...
> They
> apparently also
> reject the Troodon identification of ornithoid eggs found earlier in
> Montana.
Yes. Basically, the eggs long identified as from _Orodromeus_ in fact
belong
to _Troodon_ (see Horner & Weishampel 1996. Nature 383: 103). From the
Varricchio et al. paper:
"Additionally, the tentative assignment of Two Medicine
ornithoid-ratite
egs with a dispersituberculate surface to ?_Troodon_ (...) is incorrect.
These eggs remain unassignable to a specific dinosaur taxon."
Off the top of my head, I would speculate those eggs might be
_Chirostenotes_ or _Ricardoestesia_, among named dinosaurs.
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/~tholtz/tholtz.htm
http://www.geol.umd.edu/~jmerck/eltsite
Phone: 301-405-4084 Email: tholtz@geol.umd.edu
Fax (Geol): 301-314-9661 Fax (CPS-ELT): 301-405-0796