[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
Re: Why did small dinos become extinct?
----- Original Message -----
From: "Tim Williams" <firstname.lastname@example.org>
To: <email@example.com>; <firstname.lastname@example.org>
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....) ?