This is significant to me because I have already described a human face profile on the posterior an Ohio mammoth form (and other animals and birds) which was found in an art and tool context.
Also, I just recently described a mammoth form “framing” a rocking horse head sculpture (with galloping horse soundtrack) which has been masterfully interpreted and documented on YouTube by portable rock investigator Dennis Argaut of France. So mammoth combined with human head and or horse may be a describable pattern in portable rock art in Europe and America.
This kind of art is “almost invisible” (Alan Day, Ohio) to our minds today, even when looking for it. I was encouraged by a recent visit to the National Gallery of Art where I saw examples of art in the most minute forms, with focus and execution of detail on wonderful micro scales. It helps me to understand a possible human desire to recognize, or rectify, imagery on something as difficult for us to detect as a small, seemly meaningless, stone flake.