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Re: Why did small dinos become extinct?

To: twilliams_alpha@hotmail.com
Subject: Re: Why did small dinos become extinct?
From: jrc <jrccea@bellsouth.net>
Date: Thu, 13 Dec 2007 19:24:22 -0600
Cc: dinosaur@usc.edu
References: <4745B622.2090108@blueyonder.co.uk> <001b01c82dc9$7b5a48d0$e90e10ac@LENOVO> <20071212151637.266100@gmx.net>
Reply-to: jrccea@bellsouth.net
Sender: owner-DINOSAUR@usc.edu

----- Original Message ----- From: "Tim Williams" <twilliams_alpha@hotmail.com> To: <dinosaur@usc.edu>; <twilliams_alpha@hotmail.com> Sent: Thursday, December 13, 2007 6:12 PM Subject: RE: Why did small dinos become extinct?

(2) quill knobs, which were once thought to have been indicative of flight (or at least flight ancestry) are now reported for _Velociraptor_, suggesting (but not proving) that this character may not have originally evolved for flight. <

Might quill knobs have evolved for carrying airloads generated for directional control (same thing as evolving for flight....) ? Jim

Follow-Ups:
- Re: Why did small dinos become extinct?
  - From: JAMES ARONIS <Apollo@mlink.net>

References:
- Re: Why did small dinos become extinct?
  - From: David Marjanovic <david.marjanovic@gmx.at>

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