Re: Sweating in dinosaurs?

[tholtz@geol.umd.edu]

>Mammals sweat through the entire skin*, though there are specialized
patches for
>scent-marking objects.

>But what about non-Avian archosaurs?   (ie, _Sauroposeidon_, _Iguanadon_,
>_Nodosaurus_).   Would they also sweat all over, or would the sweat be
localized to
>certain parts of the body?


>* = which is why, after riding a horse, one must towel the entire animal
dry.

They would sweat nowhere.

Sweating seems to be a mammalian synapomorphy (although I wonder is
lissamphbians might not use mucous in some form of heat regulation?).
Reptiles do not perspire.