text:  Seventeen confirmed examples are known . An additional monument , at <unk> <unk> in Guatemala , is a throne that may have been carved from a colossal head . This is the only known example outside of the <unk> <unk> on the Gulf Coast of Mexico . Possible fragments of additional colossal heads have been recovered at San Lorenzo and at San Fernando in <unk> . <unk> colossal stone heads are also known in the Southern Maya area where they are associated with the <unk> style of sculpture . Although some arguments have been made that they are pre @-@ <unk> , these latter monuments are generally believed to be influenced by the <unk> style of sculpture . 
  