A Prehistoric Skeleton Found in Mexico's Cenotes Could Rewrite Early Human History
A prehistoric human skeleton — estimated to be at least 8,000 years old — has been discovered in a flooded cave system along Mexico’s Caribbean coast, adding to a remarkable series of ancient finds in the region’s submerged caverns.
The skeleton was recovered in late 2025 and is currently being analyzed.
It was found by cave-diving archaeologist Octavio del Río and professional cave diver Peter Broger in a passage located between the tourist destinations of Tulum and Playa del Carmen on the Yucatán Peninsula.
Broger initially came across the shattered skull and bone fragments before contacting del Río to investigate further.
Del Río, who collaborates with the National Institute of Anthropology and History, was overwhelmed by what he saw beneath the surface.
“You can shout even under water,” del Rio told the Associated Press of seeing the skeleton up close for the first time.
Mexico’s Underwater Caves Yield Glimpse Into the Past
The remains were found 26 feet (8 meters) below the surface, roughly 656 feet (200 meters) into the cave. Only expert divers with specialized equipment can access the passages today.
The caves are known as “cenotes” — freshwater sinkhole caves formed from the collapse of limestone bedrock. Ancient Mayans believed cenotes were sacred portals to the underworld, where gods and spirits dwelled.
The cave system flooded at the end of the last ice age — the end of the Pleistocene epoch — approximately 8,000 years ago, due to rising sea levels from melting ice.
That flooding is what researchers used to estimate the skeleton’s minimum age, though it could be much older.
The skeleton was found partially covered in sediment. Its position on a sediment pile suggests intentional placement, likely as part of a ritual funerary practice.
Its distance from the cave entrance rules out placement by later Paleoamericans. Researchers note that more study is still needed, including dating, photographic studies and collection.
11 Skeletons Have Been Found In the Underwater Caves
This is the 11th such skeleton found in these caves over the last three decades.
Some earlier skeletons found in the same region date back approximately 13,000 years, making them some of the oldest human remains in North America.
One skeleton estimated at 10,000–12,000 years old was surrounded by evidence of bonfires, possibly indicating funerary rituals involving light.
And then there’s “Eva de Naharon” (Eve of Naharon), the oldest known skeleton found in the cenotes. The skeleton is estimated to be 13,721 years old and is currently the oldest known human fossil in the Americas.
Underwater Caves Hold More Than Human Remains
Around the time this individual was alive, the Yucatán Peninsula was a semi-arid savannah with no rivers or lakes — water and shade were scarce. Some researchers believe ancient peoples sought relief from heat in the caves, which were fed by fresh underground water.
The find will help researchers understand how early people arrived at and used the Yucatán Peninsula.
DNA data increasingly supports the theory that early inhabitants arrived from Asia via a land bridge at what is now the Bering Strait, though some clues also suggest a South American route.
Luis Alberto Martos of the National Institute of Anthropology and History told the AP that “the puzzle of Yucatan prehistory is becoming better understood.”
The caves also hold more recent artifacts, including a small cannon and 19th-century rifles, strengthening the case for cultural heritage protection.
Archaeologists are under pressure to find and document as much as possible before mass tourism further impacts the area.
This article was created by content specialists using various tools, including AI.
