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Re: Hell Creek and stegosaurs
> One theory is that stegosaurs, with their relatively unprotected flanks,
were vulnerable to the new 'breed' of maniraptoran killers - especially
deinonychosaurs.<
I'd consider this unlikely at best. There were probably maniraptorans
running around in the Morison (_Koparion_ and its ilk)\, if not earlier, and
they seemed to do alright then...
Peace,
Rob
Student of Geology
P.O. Box 20840
Flagstaff, Az. 86011
http://dinodomain.com
http://www.cafepress.com/robsdinos
AIM: TarryAGoat
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> Tim
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> -----------------------------------------------------------
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> Timothy J. Williams, Ph.D.
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> USDA-ARS Researcher
> Agronomy Hall
> Iowa State University
> Ames IA 50014
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> Phone: 515 294 9233
> Fax: 515 294 9359
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>