Re: Jacobson's Organs

[Dalmiro Maia du DASOP <dalmiro@mesioq.obspm.fr>]

Timothy E. Isles wrote:

> I don't *think* that crocodiles have true vomeronasals, but I'll have to
> check this out sometime to be absolutely sure.  It has been observed that
> the American Alligator appears to employ "scent marking" and sex pheromones
> but this is not well understood.
> 

That's curious, for it would mean that extant archosaurs lack that trait. From 
what
you say about alligator's "scent marking" not being well understood I presume it
must be quite different from scent sensing in birds. Does anyone in this list
know anything more about this topic? Does any living archossaur show 
vomeronasals?
(I suppose there is no way of telling about fossils).