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RE: Pterorhynchus dewlap



Agree completely. 

Hence any talk of dorsal plumes or a giant crest increasing drag, whether in a 
leaping Longisquama or pterosaurs, matters little.  Most pteros were the 
lionfish and birds-of-paradise of their day IMHO.

David Peters
St. Louis

-----Original Message-----
>From: Ken.Carpenter@dmns.org
>Sent: Feb 1, 2006 9:32 AM
>To: davidrpeters@earthlink.net, dinosaur@usc.edu
>Subject: 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: 
>https://scientists.dmns.org/sites/kencarpenter/default.aspx
>
>-----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