Research Uncovers Organized Craft Production of Bone Tools in Argentina

New research has revealed significant insights into the organized craft production of bone tools by ancient communities in Argentina’s Sierras de Córdoba during the Late Prehispanic Period, approximately from 1220 to 330 cal BP. A study led by Dr. Matías Medina and his colleagues, Sebastián Pastor and Gisela Sario, published in the International Journal of Osteoarchaeology, examined the manufacturing techniques of bone arrow points, a prevalent tool type in this region.

For many years, knowledge regarding the use of bone as a raw material by these prehistoric communities was limited. The research fills a crucial gap in understanding how these societies organized their daily lives and craft production. Prior studies had largely focused on the chronological aspects of artifact typologies, leaving the technological aspects of bone tools underexplored. As Dr. Medina noted, “Publications dealing specifically with bone technology were, for decades, scarce, especially in South America.”

Insights from Technological Analysis

The study analyzed 117 bone artifacts housed at the Museo Arqueológico Numba Charava. These artifacts were collected over the 20th century from various sites in the southern Punilla Valley, although many pieces lack precise provenance. Researchers identified that the primary material used for crafting these arrow points was the bones of the guanaco, a species of llama, which were hunted for food and later repurposed into tools. Bones from other animals, such as pampas deer, were less common.

To create the arrow points, artisans typically used metapodia, the long bones of the limbs. These bones were split lengthwise, ground on abrasive stones, scraped, and whittled into the desired arrowhead shape. Some arrow points featured additional elements such as barbs and decorative designs, which were polished to enhance their functionality and aesthetic appeal. Dr. Medina highlighted the rarity of decorative points, stating, “Only three bone arrow points with incised decoration on the blade were reported in the archaeological literature.”

The findings suggest that these arrow points were primarily used for warfare rather than hunting. Decorative features served as expressions of social identity, linking the maker to their cultural affiliations.

Significance of Findings

This research provides valuable insights into the organization of tool-making within the Southern Punilla Valley communities. Each arrow point was produced locally, with unique attributes reflecting individual craftsmanship. The study indicates that the production process was standardized yet time-consuming, likely passed down through generations within nuclear families.

Dr. Medina emphasized the necessity for comparisons with neighboring regions, such as the Low Paraná and Uruguay River floodplains, which are over 500 kilometers away. He pointed out that these areas developed complex bone technologies due to limited stone resources and a diverse subsistence strategy. Understanding the technological variations across these regions could shed light on the implications of resource availability on craft production and highlight areas for future research.

The study stands as an important contribution to our understanding of prehistoric Argentina, revealing the sophisticated practices of ancient communities in crafting essential tools for their survival and social expression.

In conclusion, this groundbreaking research not only fills a knowledge gap but also enhances our appreciation of the intricate social and technological dynamics of the Late Prehispanic Period in Argentina.