To the mediterrranean vibrancy, the idea of the pediment implies the geometric form of the triangle that closes and affirms, - it is the rigid and long-lasting crown of the Greek temple. The unchanging Khmer pediment (or fronton), however, formed in single or superimposed frames, abuts the arching descent of the gallery vaults and participates in the upward doings of the prasat. Far from rouse thing inert, it takes in that which is found out cold and carries it skywards, serving as a base for subsidiary diminishing frontons that are set at the projection of the upper tiers. With no sterility of parentage, it is enveloped by the sentient, undulating poly-lobed arch of the stylised naga, whose body is indented following ablaze leaves and whose heads themselves curve around to stand erect at either severity. The composition of the tympanum scenes new enhances the declaration of uplift. Initially the brick frontons - covered in stucco and poorly ornate considering a few abandoned motifs (reductions of buildings and figures) - were somewhat sacrificed to the sandstone lintels, and suitably were quite other in form. Derived from the horse-shoe arch of the Indian monuments they consisted of a large, usually shallow, rectangular panel. From the fall of the 9th century they were often realised in sandstone, the tympanum becoming covered in a vegetal prettification once large volutes forming a single composition, even though the frame, treated as a flat section, terminated behind the heads of diverging makaras. At the suspend of the 10th century the makara gave way to the multiheaded naga, disgorged by the head of Kala, which itself disappeared along in the middle of the era of the Baphuon in the center of the 11th century. The arch later became more rounded, showing a certain tendency to certainty. Finally, in the 12th century, the naga is subsequent to anew disgorged by the head of a brute, reminiscent this time of a dragons head. With the ventilate of the vaulted gallery the general outline becomes raised, taking the form of a thin polylobed arch.