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Re: More about Erickson et al. 2004

A few things.

I thought AMNH 5428, AMNH 5432 and USNM 12814 were Gorgosaurus, not

I also thought LAG's were unreliable for absolute age measurements, as they
could be caused by trauma and seasons of unusually low nutrition too.  But I
don't really follow the histological lit...

Could the aberrant growth trajectory of Tyrannosaurus be due to a few
species of different sizes being grouped together accidentally, ala
Olshevsky's hypothesis for Tarbosaurus?

Mickey Mortimer
Undergraduate, Earth and Space Sciences
University of Washington
The Theropod Database - http://students.washington.edu/eoraptor/Home.html