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Re: Nemegtosaurus: brach like skull?

Dinogeorge wrote:

> Another unanswered question concerns the position of the external nares in
> sauropods. I've seen no convincing arguments to explain the shift in the
> location of the nares from near the tip of the snout (primitive for
> dinosaurs, not just sauropods) to the skull roof in between the orbits. 

I suppose a elephant- or tapir-style proboscis is out of the 
question.  (No visible muscle scars, attachment sites etc for the 
trunk muscles).

Anybody know what titanosaur skulls look like (apart from