Three innovations 100,000 years ahead of Europe

The excavation of Pinnacle Point Site 13B — a sea cave in the cliff face above the wave platform — has produced three types of behavioural evidence that had previously been attributed exclusively to the Upper Palaeolithic “revolution” in Europe (c. 40,000–50,000 BCE), which had long been cited as the moment at which anatomically modern humans became cognitively modern. The key paper, published in Nature in 2007 by Marean and colleagues, reported: first, the presence of large quantities of marine shellfish bones (limpets, periwinkles, brown mussels) arranged in patterns consistent with deliberate and organised collection rather than opportunistic scavenging — the earliest documented systematic exploitation of coastal marine resources; second, the heat-treatment of silcrete, a flint-like coastal stone that fractures unpredictably in its natural state but can be improved dramatically by controlled heating to approximately 350°C before knapping, a technique requiring knowledge of material properties, advance planning, and controlled fire management; and third, pieces of ochre (iron-rich red pigment) in quantities and processing patterns consistent with symbolic use — body decoration or marking — rather than food preparation or functional tasks. The combination of all three behaviours in a single occupation layer dated independently to approximately 164,000 BCE using luminescence dating, uranium-series dating, and biostratigraphy demolished the idea that behavioural modernity was a sudden revolution that emerged in Europe or the Near East around 50,000 BCE, and supported instead the view that it emerged gradually in Africa, deeply rooted in coastal environments that provided consistent, reliable nutrition during periods of climate stress.