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Re: Spinosaurid Nose Job



In a message dated 8/4/01 9:52:30 PM EST, qilongia@yahoo.com writes:

<<  In diplodocids, the fossa is quite long and well
 rostral to the antorbital fenestra, and delineates a discernible
 narial tract. One can posit this for other sauropods for which a
 large narial fossa is present on the maxillae and premaxillae,  >>

Just out of curiosity, why move the narial openings up to the top of the 
skull if you're going to leave the external nares at the front of the skull? 
This apparently happened independently twice in sauropods (diplodocids and 
titanosaurs).