Date:

The Mysterious Stone Spheres of Costa Rica

On the small island of Isla del Caño and the Diquís Delta in Costa Rica are over 300 stone Petrospheres often referred to as the Diquís Spheres, that have been attributed to the now extinct 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.

- Advertisement -

Settlement of the region began during the Synancra period around 1,500 – 300 BC in the form of sedentary, small, and dispersed farming communities, which may have revolved around an egalitarian system with some levels of tribal organisation.

By the Aguas Buenas period between 300 BC – AD 800, the settlements developed a chiefdom structure that ruled over territorial divisions, and exchanged goods with neighbouring territories through a system of trading networks. During this period, the earliest examples of sculptured stone appeared that includes stone cylinders, “barrels,” spheres and depiction of characters.

Image Credit : Inspired By Maps – Shutterstock

Between AD 800 – 1500 during the Chiriquí Period, the 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 an apex of cultural development during this period, with Diquís artisans creating elaborate ceramic, bone, and gold objects, and sculpturing stone spheres in important zones within the settlements. Stone spheres were also placed in alignments in public plazas, or along the approach to the dwellings of the ruling elite or chieftains.

- Advertisement -

The Diquís Spheres range in size from just a few centimetres, to over 2 metres in diameter, and are mostly made from gabbro, a phaneritic (coarse-grained) mafic intrusive igneous rock that is similar to basalt, with some examples of limestone and sandstone spheres. They were sculptured by hammering boulders into a crude spherical shape using denser rocks, and were then finished by polishing the stone’s surface by using sand.

Image Credit : Marco Diaz Segura – Shutterstock

With the arrival of the Spanish to the region in the sixteenth century AD, no mention was given in contemporary accounts by the Europeans explorers of large stone spheres in the communities they encountered.

By AD 1570, an expedition by Perafán de Ribera added to the mystery when he gave no indications in his reports of indigenous settlements, suggesting by this time that the large Diquís communities had either abandoned their homes, or had died off from reasons unknown (possibly through the infectious diseases introduced to the continent by the Spanish).

The spheres remained forgotten, until they were rediscovered in the 1930s by the United Fruit Company whilst clearing the jungle to make way for banana plantations.

Header Image Credit : Inspired By Maps – Shutterstock

- Advertisement -

Stay Updated: Follow us on iOS, Android, Google News, Facebook, Instagram, Twitter, Threads, TikTok, LinkedIn, and our newsletter

spot_img
Mark Milligan
Mark Milligan
Mark Milligan is a multi-award-winning journalist and the Managing Editor at HeritageDaily. His background is in archaeology and computer science, having written over 8,000 articles across several online publications. Mark is a member of the Association of British Science Writers (ABSW), the World Federation of Science Journalists, and in 2023 was the recipient of the British Citizen Award for Education, the BCA Medal of Honour, and the UK Prime Minister's Points of Light Award.
spot_img
spot_img

Mobile Application

spot_img

Related Articles

Roman-Era settlement unearthed in Alès

A recent excavation led by Inrap has uncovered a remarkably well-preserved Roman-era settlement on the slopes of the Hermitage hill overlooking Alès, southern France.

Excavations in Olympos reveal ancient mosaics and sacred inscriptions

Excavations in Olympos, Antalya province, have uncovered mosaic floors and inscriptions within a 5th-century church, part of a year-round project backed by Türkiye’s Ministry of Culture and Tourism.

Mammoth bones uncovered during road construction works

The Construction of the S17 Piaski–Hrebenne highway near the Arabunie village in Zamość County has revealed the remains of what is believed to be either a woolly mammoth or a forest elephant.

Hidden Medieval tower unearthed in Lublin reveals forgotten chapter of city’s past

Archaeologists have uncovered the remains of a previously undocumented medieval tower within the grounds of the former Pobernardine monastery complex, near the Church of the Conversion of Saint Paul on Bernardyńska Street.

Sinkhole reveals lost remains of medieval hospital

A sinkhole that formed outside the York Theatre Royal has led to the discovery of what could be one of England’s largest medieval hospitals.

Chalcolithic cultural treasures unearthed in Caucasus

Archaeologists from the Institute of Archaeology of the Russian Academy of Sciences have uncovered 13 Chalcolithic-era sites, each yielding a wealth of cultural artefacts and material evidence.

Study reveals East Asia’s earliest gold-inlaid spear sheath

In 1954, a bronze spear sheath dating from Japan’s Kofun period (AD 300–538) was found beneath a rock on Okinoshima, a sacred island located off the coast of Munakata, Fukuoka.

Cache of military helmets from both World Wars discovered during roadworks

Road construction works in the Polish city of Wroclaw have unearthed an unusual cache of military objects from WWI and WWII.