 The site is medium to large , with groups of temple @-@ pyramids set on terraces rising some 71 metres ( 233 ft ) above a plaza , a large court for playing the <unk> <unk> , and over 100 carved monuments , most dating from the 6th century through the 9th centuries AD , during the Classic period . Toniná is distinguished by its well preserved stucco sculptures and particularly by its in @-@ the @-@ round carved monuments , produced to an extent not seen in <unk> since the end of the much earlier <unk> civilization . 
