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Las primeras evidencias achelenses en la Peninsula Iberica, tecnocomplejo de origen africano, se remontan a 1 Ma aproximadamente, si bien hasta el MIS 15-13 no se extiende de forma significativa en la cuenca media del Tajo. Mediante el estudio tecnologico de las muestras liticas de Pinedo, Cien Fanegas y Tafesa en la cuenca media del Tajo y las dataciones IRSL (post-Infrared Stimulated Luminiscence) y ESR de los depositos de terrazas a +25-30m del Tajo en Pinedo y Cien Fanegas en las inmediaciones de Toledo se evidencia una perduracion de esquemas tecnologicos achelenses en fechas recientes (MIS 11-8) dentro del tramo final del Pleistoceno Medio, similar a otros enclaves de la Meseta Central y del suroeste de Francia. Las caracteristicas tecnologicas de estas series liticas (compuestas por cantos tallados, bifaces, triedros, picos triedricos, hendedores) y debitage no estandarizado (centripeto y multipolar) no tiene un significado cronologico, sino que responde a tradiciones tecnologicas que perduran hasta el final del Pleistoceno Medio para el caso del interior de la Peninsula Iberica. The first Acheulean evidences in the Iberian Peninsula, are date approximately 1 Ma before present, although up to MIS 15-13 its presence in the middle basin of the Tagus river does not extend significantly. In this contribution, we present the relevant results of the technological study of the lithic series from Pinedo, Cien Fanegas and Tafesa sites located in the middle basin of the Tagus. This study together with the IRSL (post-Infrared Stimulated Luminiscence ) and ESR dates of the terrace deposits at + 25-30m of the Tagus (Pinedo and Cien Fanegas in the vicinity of Toledo) indicate the perdurance of the Acheulian technological schemes during the late Middle Pleistocene (MIS 11-8). This circumstance is similar to other places of the Iberian Central Plateau and south-western France. The technological characteristics of these lithic series (composite of pebble tools, bifaces, trihedrals pieces, picks and cleavers) together with a non-standardized flaking systems (centripetal and multipolar) does not have a chronological meaning, but probably responds to technological traditions that can be dated in the final part of the Middle Pleistocene for the inner area of the Iberian Peninsula.

La tradición tecnológica achelense en la cuenca media del río Tajo = The Acheulian Technological Tradition in the Middle Basin of the Tagus River