Re: CROCODYLOMORPH ENDOTHERMY

[Dinogeorge@aol.com]

In a message dated 96-01-26 20:34:08 EST, pharrinj@PLU.edu (Nicholas J.
Pharris) writes:

>No extinct non-croc thecodont sprawled like a croc or lived in the water, 
>which dampens temp. fluctuations and lessens the need for endothermy.
>
>

Certainly proterosuchians did. They are universally considered to have been
riparian piscivores. By the way, did you see the little posting by Richard
Cowen about his article  "Locomotion and Respiration in Marine Air-Breathing
Vertebrates"? There is a lot of material therein very germane to this
discussion. It can be accessed on the Web at the site

http://www-geology.ucdavis.edu/~cowen/ichthyosaur.html

Take a trip there and have some fun. And see why archosaurs probably evolved
erect posture well before the advent of endothermy.