Telmo Pereira is a Researcher at the Interdisciplinary Center for Archaeology and Evolution of Human Behaviour (ICArEHB) at the University of Algarve, Portugal, where he received his PhD in 2010. He has been working with stone-tools from the Lower Paleolithic to the Bronze Age, in Portugal, and with Middle Stone Age stone tools from South Africa. His work in the last few years has been dedicated to raw material sourcing and processing distribution in prehistory, focusing in particular on their provenance and characterization.

Xavier Terradas is a Research Scientist at the Spanish National Research Council (CSIC), based in the IMF Institute (Archaeology of Social Dynamics Group), Barcelona, Spain. He has mainly worked on the study of socioeconomic strategies in the Mesolithic-Neolithic transition as well as its dynamics of change in the Western Mediterranean. He specializes in studying technological innovations and technical skills in prehistory, especially those related to stone tools production. In recent years, his research has focused on raw material availability and quarrying activities.

Nuno Bicho, PhD, is Associate Professor of Archaeology at the University of Algarve, Portugal, where he is also the Director of the Interdisciplinary Center for Archaeology and Evolution of Human Behaviour (ICArEHB). Further to this, he is the Academic Editor of the journal, PLOS ONE. He specializes in Paleolithic ecodynamics and researches the Mesolithic of the Tagus Valley and on the Middle Stone Age in Mozambique.