As completely convincing explanation, if not a few 'but'. The fact is that between the dug in Acambaro figurines teeth were so-called 'horse of Aries', which became extinct in the early Pleistocene. And some of the figures depict exactly this horse! It is hard to assume that the artist's imagination told him the appearance of an animal that died out long ago, on the basis of only a few of his teeth. And here are some facts that might even indirectly illustrate this finding. In the valley Pelaksi River in Texas kept clear of fossilized dinosaur footprints (river bottom at this point there was in the Cretaceous). Very near - human footprints! It looks as if he pursued this dinosaur ... American paleontologist KN Doherty found that here, in the so-called "Valley of the Giants', these hundreds of tracks.