It will be very difficult to find absolute proof of the palaeo shaman from an archaeological point of view
We have a similar problem with evidence of ancient sea travel yet it seems as if the vast majority accept the existence of stone age boats.
The complaint has been raised, and I am guilty of this myself, that anthropology and archaeology have far too quick a tendency to take anything they can not instantly categorize into a neat little box as "ritualistic." Personally, with emphasis on the "personally", I can't see where modern primitives are all that wrapped up in ritual. To be sure it exists but they are far too busy trying to eat and I can't help but wonder if that was not true of the ancients as well.
Religion, for better or worse, has always been some portion of human existence. There is no denying that. In agricultural societies it seems that the "temples" or palaces were the only things built of sufficiently solid materials to survive the passage of time which may well account for the apparent over saturation of "religious" structures. The priests and the kings lived in stone while the commons lived in mud huts. That what stratification of society means.
For myself, I'm not all that impressed with the argument that cave art of animals represents some kind of hunting magic. It could but then again it could just be a place where hunters recorded their prowess...sort of like a stone-age frat house. I doubt that the argument will ever be settled but it is a point of view.
I'll restate my earlier position: If you wish to discuss this issue, feel free. If you don't, ignore it. There are lots of threads in the forum which do not generate an enormous response for one reason or another. That's cool.
Every thread should not be hijacked, as Marduk would do with his Sumerians or Arch with his bible, but this was one clearly labelled and should have been easily avoided by anyone who wanted to avoid it.
Peace, brothers.