Extensive research carried out during the last 30 years in the lowermost foothills of the Southern Pyrenees has revealed the significance of this area for studying Neanderthal lifestyle and settlement histories in the Iberian Peninsula. With a large number of cave and rock shelter sites, broad-ranging chronologies, and relatively well-known sedimentation rates and environmental conditions, this enclave continues to improve our knowledge about Neanderthal behaviour in Western Europe.

Here we present the chronostratigraphic, technological, faunal, and palaeoenvironmental results from Abric Pizarro, a recently discovered site from the region. Its archaeological sequence is centred on MIS 4, a poorly known period in Neanderthal history. The application of three different dating methods (newly obtained single-grain optically stimulated luminescence and U-series fossil teeth ages, in addition to previously published thermoluminescence ages) provides an accurate chronology for a site where the exceptional preservation of faunal remains leads to significant interpretations of Neanderthal hunting abilities and adaptability. Moreover, analysis of the lithic assemblage, as well as preliminary palaeoenvironmental data, are used to provide insights into the degree to which chronocultural or palaeoenvironmental factors were responsible for some of the significant differences observed among the four archaeological units explored in Abric Pizarro to date. Our results contribute to discussion about Neanderthal resilience and their livelihood before their disappearance from the archaeological record.