I've been meaning to return to this topic for some time.
When dealing with Australian rock art, one series stands head and shoulders above all the others: the Bradshaws.
I have discussed this previously in Soma. At that time it was difficult to get access to these images for various reasons, but I now see there is much more published on them.
One of the issues is that the aboriginal tribes who are custodians of the land they are on, tended to have an ownership and privacy claim, and didn't want them published etc. But what is such a mystery about these painting is that they are so old, they probably predate the aboriginal migration. This remains a mystery and controversy.
They are distinctly different to anything else in Australian rock art. They are lithe, floating, graceful, full of artistic beauty (keep in mind they were done around the time of the last ice age), dancing, ethereal - in fact down right magical! Who painted them, and when?
Much more is now online about this mystery, but here is a sample of the art:
http://www.bradshawfoundation.com/bradshaws/bradshaw_paintings.phpeg
