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RE: Pterorhynchus dewlap

Streamlining to reduce drag only becomes important at high speed when
drag increases. It is not as important in a low speed swimmer or flier.
Compare the body of a high speed swimmer like a tuna versus the slow
speed, high drag eel. Or falcon in a dive vs prairie chicken.

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 david peters
Sent: Wednesday, February 01, 2006 7:19 AM
To: dinosaur@usc.edu
Subject: Pterorhynchus dewlap

DMLer Cliff Green kindly sent a photo of a life model of the pterosaur
Pterorhynchus created by Czerkas. Noteworthy is that giant wattle/dewlap
hanging to mid chest. 

I guess with that we can toss out all thoughts of pterosaurs trying to
reduce drag through streamlining. 

Something else seems to be more important --  at least to this one.

David Peters
St. Louis