discovered Monument 31 from the highland site of Chalcatzingo demonstrates for the first time that at least by the Middle Formative Period (900-500 B.C.), the Lazy-S motif, like its Classic Maya counterpart, was associated with both clouds and bloodletting. Although the Lazy-S motif figures prominently in the iconographic corpus at Chalcatzingo, until the analysis of Monument 31 no context exis...
