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RE: again: frill of Triceratops

To: dinosaur@usc.edu
Subject: RE: again: frill of Triceratops
From: Nathan Myhrvold <nathanm@MICROSOFT.com>
Date: Tue, 17 Sep 1996 16:42:43 -0500 (EST)
Reply-to: nathanm@MICROSOFT.com
Sender: owner-dinosaur@usc.edu

 From:  Jonathan  R. Wagner[SMTP:znc14@ttacs1.ttu.edu]

>  One I would favor is blood support for a keratin sheath.  Since
> Triceratops in particular had marginal hornlets, perhaps the entire
> frill was covered in horn.  Or maybe all of the vascularization was
> there to support the frill.
>        Wagner

Antlers on deer, moose and related species are a good example of this -
highly vaclularized to support growth, not thermoregulation.

Nathan

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