Their style, the stratigraphic data and the general character of the building phase they are associated with seem to chronologically place these masks sometime in the very Early Classic period (ca. 200-300 A.D.) or possibly even the Late Preclassic (or some two-thousand years before the present). The "L" shape of this example's eyes is strongly reminiscent of Olmec masks and is absent in Classic Maya imagery, which argues for the masks harking back to the Preclassic. Notice here, also, the three-element headband the mask is wearing.