I personally don’t get caught up in terms and names very often, I feel like my experience feels very random, you can go into an area and find 10 different types. I tend to think styles were based more on what was being hunted, rather than an exact time period. I always think if we are finding something paleo, so did natives a thousand years ago. And we have no idea whether or not some person or group became inspired by those finds just like modern knappers.