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Re: The Face of Death

To: Dinosaur Mailing List <dinosaur@usc.edu>
Subject: Re: The Face of Death
From: "T. Michael Keesey" <keesey@gmail.com>
Date: Wed, 26 Apr 2006 17:27:36 -0700
In-reply-to: <BAY106-F279BA20BD6CC54A5D0E072ABBD0@phx.gbl>
References: <BAY106-F279BA20BD6CC54A5D0E072ABBD0@phx.gbl>
Reply-to: keesey@gmail.com
Sender: owner-dinosaur@usc.edu

On 4/26/06, Dinosaur World <dinoworld@msn.com> wrote:
> I have a replica of the skull of Stan, the Tyrannosaurus. He has, what
> appears to be, brow horns (Postorbital rugosity?), over each orbit. Is it
> possible for these to be moved or manipulated to alter the "expression" of
> the face? Could a Tyrannosaur use facial expression to threaten or
> intimidate a rival?

No, it's bone. It can only be "manipulated" by bashing it in or breaking it off.

Sauropsids (birds and reptiles) aren't generally as facially
expressive as mammals, and we simian primates are especially facially
expressive.
--
Mike Keesey
The Dinosauricon: http://dino.lm.com
Parry & Carney: http://parryandcarney.com

References:
- The Face of Death
  - From: Dinosaur World <dinoworld@msn.com>

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