Epipalaeolithic assemblages in the Western Ebro Basin (Spain): The difficult identification of cultural entities

In this paper, we analyse the transition Late Palaeolithic–Mesolithic in a restricted northern area into the Ebro Basin (from Álava to Huesca provinces), where this phase is still not well established. Between the end of the Alleröd and the start of the Boreal, the lithic assemblages are based on microlaminar industries with a predominance of backed pieces, related to the Magdalenian tradition. Despite this common microlaminar tradition, some internal differences suggest the possibility of evolution in time and perhaps in space. In order to develop an internal classification in the studied area, we analyse some backed types, and especially the chronological and regional relationship among the different industries tested.