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re: Pterosaur in water



There's at least two: check out Fig. 9 in Lockley and Wright's 2003 paper on 
pterosaur swim tracks, and this old thing:

http://www.flickr.com/photos/markwitton/206037807/in/set-72057594082038974/ 

It's - holy crap - 3 years old now, so please be kind. Once upon a time, there 
was also an image of swimming Quetzalcoatlus posted at Azhdarcho.com, but it's 
since been removed. Clearly, pterosaur palaeoartists are not pulling their 
weight in the swimming pterosaur department.

Cheers,

Mark

--

Dr. Mark Witton

Palaeobiology Research Group
School of Earth and Environmental Sciences
University of Portsmouth
Burnaby Building
Burnaby Road
Portsmouth
PO1 3QL

Tel: (44)2392 842418
E-mail: Mark.Witton@port.ac.uk

>>> David Peters <davidrpeters@charter.net> 08/10/2009 12:01 >>>
Ok, it just occurred to me I've not seen a representation of a  
pterosaur in water. Did a quick google search but nothing yet.
So, did they sit in the water like a duck? How were the wings folded?  
etc

Is there a pic someone's done? Having troubles visualizing this water
take off...

 >>>

Wings folded and hollow they would float like pontoons with the  
pterosaur between them also unable to sink IMHO. Legs also spread  
laterally. Lifting the wings into the air would sink the pterosaur  
slightly IMHO, but passing breezes would lift it. IF no passing  
breezes, why did the pterosaur settle on the surface to begin with?  
Elasmosaur bait.

The hyperelongated metacarpals of nyctosaurs, pteranodons, etc. might  
have been part of the balancing act, keeping the center of balance at  
all times (even while pontooning with an enormous rostrum) centered at  
the glenoid.

David Peters