@ GenevaMech- I never knew there was a difference between hieroglyphs and petroglyphs. I grew up in Hawaii, so I have seen ancient Hawaiian Petroglyphs. I guess these can be considered aboriginal art paintings because the islands were uninhabited before Polynesian settlers settled the archipelago.
The Volcanoes National Park on the big island has a site with a large concentration of these hand-carved masterpieces. For anyone who takes a visit to the islands I recommend checking out this site. The site is called Panau-Nui Pu'u Loa, and you will see a number of petroglyphs carved into the smooth pahoehoe lava in the area. If you see any petroglyphs that have depict people with triangle shaped bodies, then you have seen a style of petroglyph that is native to no other place.