Re: JP3 Thoughts (frilled Dilophosaurus revisited)

[christopher robert noto <crnoto@midway.uchicago.edu>]

Waaaiiit a minute...how do we know that dinosaurs didn't have external
oral glands?  Is it something found lacking in extant archosaurs (birds
and crocs)?  Is there skeletal evidence on the skull to support this
conclusion?

Chris Noto

> THat's what I have heard, too.  The venom glands, like I wrote in a post a
> few days ago, are highly modified external oral glands, and I believe the
> original glandular function was saliva.  Again, that's why theropods can't
> be venomous like snakes and lizards; they don't have external oral glands.
>
> -Demetrios Vital
>