Coral Island lies about 15 miles south of the Island of Santa Catarina of the Brazil coast. On Coral Island are two important rock art petroglyph panels of similar size as those at archaeological sites on Arvoredo Island.
This petroglyph from Siberia is dated to around 5000 BCE. (It reminds me of legends of many-headed demons from the Ramayana, though Ravana had ten heads. And also of Tilak's theory of an Arctic source for the Vedas).