World

Massive tree deep in Amazon hid ancient burials of unknown culture — until now

The seven urns, two of which were very large, have characteristics never before seen in artifacts from known indigenous cultures in the region, experts said.
The seven urns, two of which were very large, have characteristics never before seen in artifacts from known indigenous cultures in the region, experts said. Photo by Georgea Holanda

Deep in the Amazon, hours and miles away from the nearest community, an uprooted tree has revealed seven urns buried beneath it, believed to belong to an ancient, unidentified indigenous group.

Local residents first discovered the artifacts in the seasonal floodplain of Brazil’s Fonte Boa region and alerted archaeologists, according to a June 9 news release from the Mamirauá Institute.

Experts said the urns, two of which were very large, had some rare features as well as characteristics never before seen in artifacts from that region, including their size and lack of ceramic lids.

The urns contained fragments of human, turtle and fish bones, according to archaeologists.
The urns contained fragments of human, turtle and fish bones, according to archaeologists. Photo by Marcio Amaral.

Initial analysis shows the use of a rare but not unprecedented type of greenish clay, according to the release. Additionally, the exterior designs of some of the urns had no connections to any known ceramic traditions practiced by indigenous cultures from the region, experts said.

Fragments of human bones, turtles and fish were discovered inside the urns, indicating they were likely used for funerary rituals, according to the release.

The urns were buried about 15 inches deep, likely under what would have been a residential area, according to experts.

The archaeological site, called Lago do Cochila, is part of a group of artificial islands built hundreds or thousands of years ago by indigenous peoples in flood-prone areas to protect housing and social areas during the flood season, experts said.

Archaeologist Márcio Amaral said the artificial islands were a very sophisticated indigenous engineering technique.

The remote site is about a 10-12 hour boat ride up the Amazon river, archaeologists said.
The remote site is about a 10-12 hour boat ride up the Amazon river, archaeologists said. Photo by Georgea Holanda

Due to the site’s remote location, transporting the urns for analysis was a massive, collaborative effort requiring complex logistical adaptations, a 10-12 hour river journey and careful handling.

Archaeologists called the entire excavation an innovative process, both from a technical and social standpoint. Community members brought critical local and traditional knowledge and were actively involved in the excavation and transportation of the artifacts, according to the release.

Experts attribute the project’s success to the joining of science and tradition.

The remains are being analyzed in Tefé in Brazil’s Amazonas state.

Google Translate was used to translate the news release from the Mamirauá Institute.


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Lauren Liebhaber
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Lauren Liebhaber covers international science news with a focus on taxonomy and archaeology at McClatchy. She holds a bachelor’s degree from St. Lawrence University and a master’s degree from the Newhouse School at Syracuse University. Previously, she worked as a data journalist at Stacker.
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