The Frieze of the Dream Lords ( also known as the Frieze of the Four Suns or Frieze of the Four Eras ) was uncovered by archaeologists during excavations in 1992 . It is a stucco mural located at the east end of the 5th terrace . It represent a complex supernatural scene divided into four by a feather @-@ covered scaffold from which hang the severed heads of sacrificial victims . Among the scaffold partitions are depicted the wayob ( spirit companions ) of the Maya elite . The most well @-@ preserved section of the sculpture depict a skeletal supernatural way named Ak Ok Kimi ( " Turtle Foot Death " ) wearing turtleshells on its feet and carrying a severed head in one hand , interpreted as the way of a lord from the site of Pipa ' . The frieze was once brightly painted in red , blue and yellow . This frieze have strong stylistic parallels with mural paintings at the great Early Classic metropolis of Teotihuacan in the distant Valley of Mexico .