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Re: questions for Witton & Naish: Azhdarchid Pterosaur Functional Morphology

Thanks, Ivan. The neck in the video is too flexible particularly in regards to the 'S' curve, but the torso, neck, head proportions are so screwed up that it doesn't even look like a quetz, and doesn't really have anything to offer re limits on quetz neck mobility. The proportions should have been about as follows. Head length 80% of neck length, torso from notarium to acetabulum 25% of neck length, total hindlimb length about 70% of neck length, terrestrial shoulder height about 80% of neck length. To be fair though, these numbers are an allometric blow up of Q species, and are subject to some variation.
JimC

----- Original Message ----- From: "Ivan Kwan" <dino_rampage@hotmail.com>
To: <jrccea@bellsouth.net>
Cc: "Dinosaur List" <dinosaur@usc.edu>
Sent: Thursday, May 29, 2008 11:27 PM
Subject: RE: questions for Witton & Naish: Azhdarchid Pterosaur Functional Morphology



Jim,

The Quetzalcoatlus sequences can be viewed in the following clip:

http://youtube.com/watch?v=cQtRhvjc5BQ

0:12 to 1:45 and 3:22 to 4:05 would be the sequences with Q.

Cheers,
Ivan

Date: Thu, 29 May 2008 11:30:36 -0600
From: jrccea@bellsouth.net
Subject: Re: questions for Witton & Naish: Azhdarchid Pterosaur Functional Morphology
To: hammeris1@bellsouth.net
CC: dinosaur@usc.edu

I didn't watch it. How much neck mobility were they showing?
JimC

----- Original Message -----
From: "Hammer"
To:
Sent: Thursday, May 29, 2008 10:41 AM
Subject: Re: questions for Witton & Naish: Azhdarchid Pterosaur Functional
Morphology


Re: neck flexibility

Don't know if you have seen it or not, but if you have,
do your conclusions mean that the Q. in the late Cretaceous segment of
"When Dinosaurs Roamed America" probably had too much neck mobility
when feeding on the 'ceratops carcass? Or was it well within the range
of possibility?



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