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RE: Plesiosaurs Necks

Well, what is a high rate of speed, and why do you assume they swam
fast? Considering how much interspinal ligament was probably present for
most of the neck (based on scars), it was (unlike the debate on sauropod
necks) a fairly rigid neck.  


Kenneth Carpenter, Ph.D.
Curator of Lower Vertebrate Paleontology/
Chief Preparator
Department of Earth Sciences
Denver Museum of Nature & Science
2001 Colorado Blvd.
Denver, CO 80205
Phone: 303-370-6392
Fax: 303-331-6492
for PDFs of some of my publications, as well as information of the Cedar
Mountain Project: 

-----Original Message-----
From: owner-dinosaur@usc.edu [mailto:owner-dinosaur@usc.edu] On Behalf
Of Dinosaur World
Sent: Sunday, January 15, 2006 4:11 PM
To: dinosaur@usc.edu
Subject: Plesiosaurs Necks

Has there been studies to try and determine how a Plesiosaur, especially
Elasmosaurus, would have been capable of holding their necks straight
while swimming at a high rate of speed?

What would have prevented the neck from simply folding backwards due to
the force of the oncoming water?