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Re: Lungs and Feathers

At 10:54 PM 1/9/98 -0500, GSP1954@aol.com wrote:
>Am I suggesting sauropods had a bird-like air-sac complex? You bet, 
>and so have others. Of course the intensely pneumatic vertebrae 
>confirm the presence of air-sacs. The ribcage, .... This very 
>efficient respiratory system probably evolved
>in order to overcome the dead space inherent to their very long 

Indeed, a paper in _The Complete Dinosaur_ argues, quite convincingly, that
even a bradymetabolic _Apatosaurus_ would have needed an avian style
respiration system for just this reason, along with the large oxygen
requirements engendered by the huge body.

May the peace of God be with you.         sarima@ix.netcom.com