Marina MOSQUERA, Andreu OLLÉ , Xose Pedro RODRÍGUEZ

Institut Català de Paleoecologia Humana i Evolució Social (IPHES), Àrea de Prehistòria, Universitat Rovira i Virgili (URV), 43005 Tarragona, Spain

FIRST PARAGRAPH: The Sierra de Atapuerca (Spain) sites yield several archaeological assemblages that represent a chronological sequence from the late Early Pleistocene to the late Middle Pleistocene. After studying these assemblages, several factors have been observed to keep on or change along the Atapuerca sequence (see Ollé et al., this volume), and they may determine the technological evolution at a local scale. These factors are: 1)Dominance of certain production methods depending on the chronology; 2)Presence / absence of small retouched flakes; 3)Small tools diversity, standardization, continuity of retouch, and intensity of configuration; 4)Presence / absence of choppers and chopping tools; 5)Presence / absence of large cutting tools.