An international research team has identified tiny triangular stone points in the oldest occupation layers of Uzbekistan’s Obi-Rakhmat rock shelter, dating to about 80,000 years ago. The researchers say the objects may have functioned as light projectile points, possibly arrowheads, based on their size and microscopic impact damage.
The findings were reported by The Conversation in connection with a study published in PLOS One. The points are unretouched, less than 2 centimeters wide and weigh only a few grams. According to the researchers, their dimensions would have made them unsuitable for heavy shafts. Their cutting-edge width instead corresponds to arrow shafts documented for low-poundage bows, although the team says it may be more cautious to refer broadly to shooting rather than definitively identify the weapon as a bow.
The interpretation comes from comparisons between macroscopic and microscopic damage on the points and experimental reference data. The Obi-Rakhmat assemblage also contains much heavier, thicker points interpreted as suitable for spears or javelins. This contrast suggests the tiny pieces were not simply smaller versions of more robust hunting points.
The researchers compared the Uzbek specimens with similar projectile points from a layer at the Mandrin site in France dated to approximately 54,000 years ago. That layer also contained a Homo sapiens milk tooth. The two groups of points are separated by more than 6,000 kilometers and about 25,000 years, but the study reports similarities in their shape, manufacture and use damage.
The team argues that the combination of microlithic projectile points and other projectile technologies is currently documented most clearly at Homo sapiens sites. Comparable damaged points are described as rare in the Neanderthal record and generally larger when they occur. The researchers therefore propose that the Obi-Rakhmat points may represent an early example of a technological tradition associated with Homo sapiens, while acknowledging that independent invention in Central Asia and southern Africa is also likely.
Obi-Rakhmat lies at the southwestern end of the Talassky Alatau range in Uzbekistan’s Tien Shan mountains. Excavated deposits at the shelter preserve stone tools dating from roughly 80,000 to 40,000 years ago. A child’s skull from a layer dating to about 70,000 years ago has features considered both Neanderthal and anatomically modern, though the source says this combination could reflect hybridization.
The researchers suggest that Obi-Rakhmat and Mandrin could mark stages in a wider dispersal of Homo sapiens across Eurasia. They also predict that similar, previously overlooked points may be identified at sites between Central Asia and the western Mediterranean. That proposed migration scenario remains an interpretation of the archaeological evidence rather than a settled account of how modern humans reached Europe.
