Publications by authors named "Sylvain Renou"

Article Synopsis
  • The study analyzes stable carbon, nitrogen, and sulfur isotope ratios from collagen in bones of Rangifer, Equus, and Bison at Les Cottés, investigating their dietary habits and ecological adaptations during the Middle and Upper Palaeolithic (~45.8-35.3 ka cal BP).
  • Key findings show that Rangifer had a higher carbon ratio than the other species, reflecting its lichen-based diet, with notable dietary changes during cooler periods like the Heinrich 4 event.
  • There were also trends in nitrogen and sulfur values: Rangifer's lower sulfur ratios suggest broader foraging areas, while Equus and Bison exhibited declining sulfur values over time, possibly due to adverse climate shifts.
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Did Neanderthal produce a bone industry? The recent discovery of a large bone tool assemblage at the Neanderthal site of Chagyrskaya (Altai, Siberia, Russia) and the increasing discoveries of isolated finds of bone tools in various Mousterian sites across Eurasia stimulate the debate. Assuming that the isolate finds may be the tip of the iceberg and that the Siberian occurrence did not result from a local adaptation of easternmost Neanderthals, we looked for evidence of a similar industry in the Western side of their spread area. We assessed the bone tool potential of the Quina bone-bed level currently under excavation at chez Pinaud site (Jonzac, Charente-Maritime, France) and found as many bone tools as flint ones: not only the well-known retouchers but also beveled tools, retouched artifacts and a smooth-ended rib.

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The transition from Middle to Upper Paleolithic is a major biological and cultural threshold in the construction of our common humanity. Technological and behavioral changes happened simultaneously to a major climatic cooling, which reached its acme with the Heinrich 4 event, forcing the human populations to develop new strategies for the exploitation of their environment. The recent fieldwork at Les Cottés (France) transitional site offers a good opportunity to document subsistence strategies for this period and to provide for the first time high-resolution insights on its evolution.

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