1995/04/28 by John E. Yellen, Alison S. Brooks, Els Cornelissen +2 · 10 citations
Social Sciences · Arts and Humanities · Earth and Planetary Sciences · #Pleistocene-Era Hominins and Archaeology #Forensic Anthropology and Bioarchaeology Studies #Archaeology and ancient environmental studies
paper · doi:10.1126/science.7725100
openalex publication_date 1995/04/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30
Three archaeological sites at Katanda on the Upper Semliki River in the Western Rift Valley of Zaire have provided evidence for a well-developed bone industry in a Middle Stone Age context. Artifacts include both barbed and unbarbed points as well as a daggerlike object. Dating by both direct and indirect means indicate an age of approximately 90,000 years or older. Together with abundant fish (primarily catfish) remains, the bone technology indicates that a complex subsistence specialization had developed in Africa by this time. The level of behavioral competence required is consistent with that of upper Paleolithic Homo sapiens sapiens. These data support an African origin of behaviorally as well as biologically modern humans.