Dinosaur and UFO on Aboriginal engravings (petroglyphs) near Sydney

Ku-ring-gai Chase National Park is the richest place of Aboriginal engravings around Sydney. Some sites have very unique and strange engravings, like engraving of dinosaur. We coloured the engraving inside for your clear vision of the engraving below

Another engraving of Genyornis ancient bird can be seen next to dinosaur.  Why it is not an Emu ? because Aboriginals drew usually much smaller than real objects or 1:1 scale and this bird much large than Emu nowadays.