1. the hidden meaning of petroglyphs
http://www.astroset.com/bireysel_gelisim/ancient/a3.htm
2. Shape Analysis of Petroglyphs in Central Asia
http://www.scipress.org/journals/forma/pdf/2103/21030243.pdf
3.rock art in Saudi Arabia
http://www.saudiaramcoworld.com/issue/200807/art.rocks.in.saudi.arabia-.compilation..htm
Something is not right. This message is just to keep things from messing up down the road