João Marreiros is a Post-doctoral Researcher at the Interdisciplinary Center of Archaeology and Evolution of Human Behaviour (ICArEHB) in the Universidade do Algarve, Portugal, and at the Departamento de Arqueología y Antropología de la Instituición Milà I Fontanals, del Consejo. His research focuses on the technology and functionality of stone tools from the Early Upper Palaeolithic in Western Europe, particularly on the techno-typological and use-wear analysis of lithic tools from the Early Upper Palaeolithic industries in the Iberian Peninsula.Nuno Bicho is currently an Associate Professor of Archaeology at the Universidade do Algarve, Portugal, where he served as Dean in 1998–2001 and in 2005–2007. In addition, Dr Bicho is the Director of the Interdisciplinary Center of Archaeology and Evolution of Human Behaviour at the University of the Algarve. He specializes in Palaeolithic ecodynamics, and his research has focused on prehistoric costal hunter-gatherers of southern Iberia for the last two decades.Juan F. Gibaja is a Ramón y Cajal Researcher at the Departamento de Arqueología y Antropología de la Instituición Milà I Fontanals, del Consejo Superior de Investigaciones Científicas (CSIC). During the last decade, he has directed several research projects focusing on lithic use-wear analysis. His research focuses on the key transition phases from Late and Early Prehistory: namely, the transition between the last Neanderthals and anatomically modern humans, and the transition from the last hunter-gatherers from the Mesolithic to the first farmers of the Neolithic in the Occidental Mediterranean.