 On the west side of the plaza, in front of the main temple, is a series of basements, with remains of constructions, a stair called “K” by García Payón and two beautiful slope-panel constructions, Teotihuacan style.García Payón excavated burials containing ceramic, very similar to vessels from several Teotihuacan stages.Also there is a group of Oaxaca vessels; five shaped as jaguar paw, another with a Zapotec glyph, some are made with the characteristic gray clay of that region, belonging to the Xoo Phase, or Monte Albán IIIb/IV, in the Oaxaca Valley (Caso, et al.