@DLHoffmann shows that U-Th dating of stone under cave ? and CO3 deposits over cave ? provides accurate timeframe for Iberian cave art
U-Th dating shows that cave ? at 3 sites in Iberia are ≥ 64.8 ka. Only Neanderthals occupied the area at the time. #independentevolution
Strategic placement of cave ? indicates use of symbolism. Previous claims that humans were first species to use symbolism = #fakenews