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Re: Fw: Dinosaurs and birds

----- Original Message ----- From: "Tim Williams" <twilliams_alpha@hotmail.com>
To: <dinosaur@usc.edu>
Sent: Tuesday, April 10, 2007 12:32 AM
Subject: Re: Fw: Dinosaurs and birds

However, in pteros and bats both the forelimbs and hindlimbs were/are incorporated into a continuous flight surface,

There is no consensus yet among pterosaur researchers that all pterosaurs (or any) involved the fore and hindlimbs into a continuous flight surface. Though the continuous surface is certainly possible, several pterosaur workers see no evidence for it in the fossil record and think that the fossil evidence leans toward independent flight surfaces which would be far more effective for denizens of mostly marine soaring niches.