But how to contact him? Simply messaging him something like "Hey, you're cool, join this forum [link]" is a bit too blunt, is it not?
True. I suggest we simply make a thread about it, wait for some comments and then contact him to say we've been discussing his work.
Perhaps a map or some such? Did povorot ever specify where he thought dinosauroid sapiens would first develop and spread from? Are they in the Americas?
Well, he seems to have set them in Eurasia, considering that he keeps mentioning the 'northern steppes' as compared to the villages of Aegean, and he put the Mesolithic drawing in East Asia. However there are two species according to his text on 'Language of the Dinosauroids',
A. saurotheos and
A. borealis, whose names seem to suggest that one lives to the north.
Actually, I have a theory. I think Nemo Ramjet's stuff is that of A. saurotheos, and the stuff we see from povorot is meant to be a. Borealis. However since Nemo ramjet's latest drawing of the Dinosauroids seems to be much more like povorot's, that seems to cast doubt on this theory.
What about agriculture? He doesn't seem to have developed them beyond the hunter-gatherer stage yet.
Well, they're working bronze so they'd have to be sedentary (as far as I know working bronze does require an immovable working area, but I will admit that my knowledge of early metalworking is very limited.) However he also states that they only very rarely domesticate animals (the main exception seems to be the 'hunting bird'), and most of his drawings imply that they are carnivorous, so I'm not sure exactly how they'd have the resources to do so.