The Japanese are the only people who succeeded in developing an urban society before domestication of plants. That had to do with the very high level of productivity available in their forests.
Ok, but I don’t see where you are going with that. There is archeological evidence for ritual sites with a steady population even among generally nomadic groups.
Like I said, I haven’t read the reports on this, but I do have a background in Archeology and it wouldn’t be impossible for it to be both.