Stone spheres are found on the small island of Isla del Caño and the Diquís Delta, where over 300 stone Petrospheres have been previously identified from the Diquís culture.The Diquís culture emerged in the Valley of the Rio Grande de Térraba, where they established complex social, economic, and political systems to govern their society.During the Chiriquí Period between AD 800 – 1500, many settlements grew into large communities around the alluvial lands of the Térraba River and its main tributaries, constructing large structures using round-edged boulders, paved areas, burial sites, and circular or rectangular mounds with stone walls.The Diquís reached...