“…Some scholars have placed the source of stone used for both architecture and sculpture of Bayon style in Phnom Kulen (Kulen Mountains), or more generically among the sandstones belonging to the Khorat series (Delvert, 1963;Woodward, 1980;Jessup and Zephir, 1997). If this hypothesis is true for the stone material used for temples construction under Jayavarman VII (Uchida et al, 2007;Ku cera et al, 2008), evidence suggests that the sandstone selected for free standing sculptures does not belong to the JurassiceCretaceous formations exposed at Phnom Kulen (Terrain Rouge and Gres Superieurs Formations) or to any of those formations traditionally included in the Khorat Group (Contri, 1972;Fleuriot de Langle, 1973;United Nations, 1993;Racey et al, 1996;Sotham, 1997;Carò and Im, 2012).…”