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Re: CNN on Lungs and Feathers

John R. Hutchinson wrote:

> Also, Chris Brochu has previously pointed out that a posthepatic diaphragm
> may be a valid synapomorphy for the Archosauria, which is an interesting
> point. 
A *post*-hepatic diaphragm?!  As in a diaphragm caudal to the liver?  How 
does this work?

  --Toby White