Prehistory

Evidence of Early Human Settlement in Argentina

Archaeological Discoveries at Arroyo Seco 2

For decades, the Clovis culture was believed to be the first group of humans to cross the Bering Land Bridge and settle in the Americas. However, recent evidence has challenged this notion, suggesting that humans may have arrived much earlier.

One of the most significant pieces of evidence comes from an excavation site in Argentina called Arroyo Seco 2. Located in the pampas outside the city of Tres Arroyos, this site has yielded a wealth of artifacts and animal remains that provide insights into human activity in the region thousands of years ago.

Stone Tools and Animal Bones

Archaeologists at Arroyo Seco 2 have uncovered over 50 stone tools made of chert and quartzite. These tools show signs of wear and tear consistent with scraping animal hides. The materials used to make the tools were not found locally, indicating that they were likely transported to the site by humans.

The site also contains thousands of animal bones, which have been carbon dated to between 14,064 and 13,068 years ago. Microscopic examination of the bones reveals fractures consistent with the use of stone tools, and most of the bones lack puncture marks left by carnivores.

Hunting and Processing of Extinct Animals

The animal bones found at Arroyo Seco 2 represent a diverse range of species, including many that are now extinct. These include two species of horse, giant armadillos, giant ground sloths, camels, and others.

The large animal remains, such as those of the giant sloths, lack skulls and pelvises, suggesting that the hunters butchered the animals at the kill site before transporting them to their camp. The sheer size of these animals would have made it challenging to transport entire carcasses.

Hunting Camp Hypothesis

While human remains have not been found at the site, the evidence suggests that Arroyo Seco 2 was likely a seasonal hunting camp for pre-Clovis people. The presence of stone tools, animal bones, and the lack of natural bone traps all point to human involvement.

Supporting Evidence from Other Sites

The findings at Arroyo Seco 2 are not isolated. Other archaeological sites in South America have yielded similar evidence of early human settlement. For example, archaeologist Tom Dillehay identified artifacts from a 14,000-year-old human settlement in Chile in the late 1970s.

Implications for Human Migration

The evidence from Arroyo Seco 2 and other sites challenges the traditional view of human migration to the Americas. It suggests that humans may have arrived in South America thousands of years earlier than previously thought, and that the Clovis culture was not the only group involved in the colonization of the continent.

Arroyo Seco 2’s Significance

The findings at Arroyo Seco 2 provide valuable insights into the expansion of Homo sapiens across the world. They indicate that humans were present in southern South America at least 14,000 years ago, and that they were skilled hunters and toolmakers who adapted to the unique environment of the pampas.

Ongoing Research

Archaeologists continue to excavate and study the Arroyo Seco 2 site, hoping to uncover further evidence of early human activity in the region. This research is helping us to understand the complex history of human migration and settlement in the Americas.