Argentina

[dbensen <dbensen@gotnet.net>]

 I would like to know about Early Cretaceous Argentina.
That is pretty much the depth and breadth of my question; what was Argentina, 
like
in the Early Cretaceous?  I know of most of the place's charismatic megafauna
(Giganatosaurus, Amargasaurus, etc.), but I know very little about the habitat
itself.  Was it tropical or temperate, wet or dry, flat or hilly?  What sort of
biogeography would one see there?  What, in short, was it _like_?

I appreciate any help anyone is willing to give me.

Dan