Hi fossiltrader...
Many thanks for all the info, links, photos, and your private e-mails. My latest e-mail to you addresses (sort of) your main concern.
As I said, I'm really pleased that you also see human agency in the material; at least a few of these are almost "no-brainers", aren't they? A couple doctorate-level professors here made the same observation (not archaeologists, however - a petrologist and a forensics specialist). I think you will find the following composite photo interesting, showing the standing figure along with stones from North America and Europe. From left to right, these are from
NSW, Australia.
Day's Knob, Ohio (not very photogenic - need to find a better example).
Dave Gillilan's finds, Ohio.
Richard Wilson's finds, Watford, England.
Ursel Benekendorff's finds, near Hamburg, Germany.
Last but not least, bottom, a modern but anciently traditional Inuit (Eskimo) sculpture by Teraq Ragee named "Birdman Calling".
I find the thematic similarity among these pieces, of such wide geographical distribution, to be quite amazing. The motif, which I have named "Sky Gazer", incorporates the one several German researchers (e.g., Dr. Elisabeth Neumann-Gundrum) have seen as "der Rufer" ("the caller") many decades ago, the "caller" looking straight on rather than upward.
This motif is clearly a primal one, along with several others seeming to have covered a lot of territory over a very long time. (There is also, for example, the theme of a small anthropomorphic and/or zoomorphic figure emerging from the mouth of a larger one, which the Germans [observant folks, aren't they?] long ago called "Atemgeburt", literally "breath birth", I suppose. [See
http://www.daysknob.com/Emerging_Birds.htm ]. This motif is, quite intriguingly, also explicitly evident in modern but traditional Inuit/Yupik art.)
All this has caused me to give some serious thought to Dr. Alan Thorne's (ANU Canberra) controversial "regional continuity" hypothesis (see
http://www.freerepublic.com/focus/f-news/1541881/posts ), proposing that homo erectus (presumably not really all that dumb) widely dispersed him/herself across the planet early on in the game, then evolved locally and independently into the various human races. A couple months ago I started to compose an e-mail to Dr. Thorne presenting my observations. I haven't completed this; been busy, and also seem to waste a lot of time trying to sound more erudite than I really am.
Anyway, I hope all this gives you something to think about. I appreciate your taking an interest!
Regards, Alan