[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
Re: Sue Photos Online (Good ones!)
From: chris brochu <email@example.com>
As far as I can tell, there is exactly one tyrannosaurid
known from the Hell Creek Formation - Tyrannosaurus rex Osborn 1905. That
Sue's snout was a little narrower than in the AMNH specimen means only that
- its snout is a little narrower.
Here-here. My thoughts as I looked over the mount for the first time were
that this was an exemplary specimen of _Tyrannosaurus rex_ and in looking at
it there was never any doubt that it was such.
Intra- and interspecific variation happen to be my bag. I would second what
Chris has written above and add that you *should* expect more intraspecific
variation within the skeletons of physically larger species. Very small
species are diagnosable by skull morphometrics and metatarsal lengths, but
larger specimens show increased variation in more and more specific
osteological traits. At _Tyrannosaurus_ scale, you can imagine quite a wide
range of variation (see Carpenter's _Tyrannosaurus_ chap. in _Dinosaur
Systematics_ as well as the chapter therein on _Triceratops_).
VERY nice _T. rex_ specimen and very nice mount.
Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com