No abstract

Agriculture first reached the Iberian Peninsula around 5700 BCE. However, little is known about the genetic structure and changes of prehistoric populations in different geographic areas of Iberia. In our study, we focus on the maternal genetic makeup of the Neolithic (~ 5500–3000 BCE), Chalcolithic (~ 3000–2200 BCE) and Early Bronze Age (~ 2200–1500 BCE). We report ancient mitochondrial DNA results of 213 individuals (151 HVS-I sequences) from the northeast, central, southeast and southwest regions and thus on the largest archaeogenetic dataset from the Peninsula to date. Similar to other parts of Europe, we observe a discontinuity between hunter-gatherers and the first farmers of the Neolithic. During the subsequent periods, we detect regional continuity of Early Neolithic lineages across Iberia, however the genetic contribution of hunter-gatherers is generally higher than in other parts of Europe and varies regionally. In contrast to ancient DNA findings from Central Europe, we do not observe a major turnover in the mtDNA record of the Iberian Late Chalcolithic and Early Bronze Age, suggesting that the population history of the Iberian Peninsula is distinct in character.

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PRIMITIVA BUENO RAMIREZ (*) RODRIGO DE BALBÍN BEHRMANN (*) ROSA BARROSO BERMEJO (*) M.^ AMPARO ALDECOA QUINTANA (*) ANA BELÉN CASADO MATEOS (*) RESUMEN Se dan a conocer los primeros resultados de la excavación de dólmenes en el término de Alcántara (Cáceres), con el objeto de su consolidación y restauración. Se trata de arquitecturas en pizarra con el interés de poseer grabados megalíticos y materiales que indican la existencia de redes de intercambio en este sector del Tajo, tradicionalmente interpretado como marginal y prácticamente deshabitado en el transcurso del IV y III milenio a.C. Destaca la presencia de un ajuar campaniforme liso con vaso, cuenco con umbo y laminita metálica.

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The Peña Capón rockshelter contains an archaeological deposit known since 1970 that was the object of a preliminary study in the late 1990’s. In this paper we present a revision of the archaeological material from level 3 that includes the technological and typological study of the lithics and bone tools, the zooarchaeological and taphonomic analysis of the faunal remains, the record of engravings on bones, and the radiocarbon dating of several bone samples. The data obtained has allowed us to relate the level 3 to the Protosolutrean industries with Vale Comprido points defined in the Portuguese Estremadura, a matter that constitutes an important breakthrough within the Meseta area, where little is known about the Upper Palaeolithic prior to the Middle Solutrean. The results are consistent with the definition of the Protosolutrean as a transitional industry between the Gravettian and the Solutrean. Furthermore, the verification of a human settlement in the foothills of the Central System range during the Upper Pleniglacial (MIS 2) strongly points to the abandonment of the classic hypothesis that posit a depopulation of inner Iberia during the coldest stages of the last glacial cycle.

Se presentan los resultados del estudio del material arqueológico correspondiente al nivel 3 del abrigo de Peña Capón, cuyo depósito, conocido desde 1970, únicamente había sido objeto de una revisión preliminar a finales de la década de 1990. El análisis de la colección ha incluido el estudio tecnológico y tipológico de la industria lítica y ósea, el análisis zooarqueológico y tafonómico de la fauna, la documentación de grabados sobre soportes óseos, así como la datación radiocarbónica de varias muestras óseas. Los datos obtenidos nos han permitido relacionar el nivel estudiado con las industrias protosolutrenses con puntas de Vale Comprido definidas en la Extremadura portuguesa, lo cual constituye una novedad en la Meseta, donde apenas se conocen datos del Paleolítico Superior anteriores al Solutrense medio. Los resultados son consistentes con la definición del Protosolutrense como una industria transicional entre el Gravetiense y el Solutrense. Asimismo, la verificación de una ocupación humana en el pie de monte del Sistema Central en las fases más frías del último ciclo glaciar (MIS 2) supone un argumento favorable al definitivo abandono de la hipótesis clásica sobre el despoblamiento del interior de la Península Ibérica durante los momentos más fríos del Paleolítico Superior

No abstract

Agriculture first reached the Iberian Peninsula around 5700 BCE. However, little is known about the genetic structure and changes of prehistoric populations in different geographic areas of Iberia. In our study, we focused on the maternal genetic makeup of the Neolithic (∼ 5500-3000 BCE), Chalcolithic (∼ 3000-2200 BCE) and Early Bronze Age (∼ 2200-1500 BCE). We report ancient mitochondrial DNA results of 213 individuals (151 HVS-I sequences) from the northeast, central, southeast and southwest regions and thus on the largest archaeogenetic dataset from the Peninsula to date. Similar to other parts of Europe, we observe a discontinuity between hunter-gatherers and the first farmers of the Neolithic. During the subsequent periods, we detect regional continuity of Early Neolithic lineages across Iberia, however the genetic contribution of hunter-gatherers is generally higher than in other parts of Europe and varies regionally. In contrast to ancient DNA findings from Central Europe, we do not observe a major turnover in the mtDNA record of the Iberian Late Chalcolithic and Early Bronze Age, suggesting that the population history of the Iberian Peninsula is distinct in character.