Don't know. Couple things there that we'd have to consider.
Disk with a cross in the middle
One looks like a bone
The carving ?
Who know. Maybe Mars was our original planet and as it drifted out we jumped planets?
Seems the Martians may have been a little more laid back than Earthlings, carving goofy dancing petroglyphs instead of the more staid versions here on Earth.
I once read of a family (not in Australia I think) who had just moved into a new house and then noticed there was some mould in the shower that resembled the devil, so they moved out again!!!