RT Journal Article T1 Palaeobiological and taphonomic analysis of a site hosting a cold-adapted fauna in Iberia: The Baio cave (Zestoa, Gipuzkoa, northern Iberian Peninsula) A1 Rodríguez Almagro, Manuel A1 Arriolabengoa, Martín A1 Villalba de Alvarado, Mónica A1 Arceredillo, Diego A1 Galán, Julia A1 Fernández García, Mónica A1 Made, Jan van der A1 Esteban, José Julián A1 Arsuaga Ferreras, Juan Luis A1 Rios Garaizar, Joseba A1 Sala, Nohemi A1 Gómez Olivencia, Asier AB The study of cold-adapted faunas in Iberia is of great interest to palaeontologists because this peninsula represents the southernmost limit of the distribution in Western Europe of species such as mammoth, reindeer and woolly rhinoceros. Additionally, the direct dating of these palaeontological assemblages can provide important information regarding the palaeoecology of Palaeolithic humans. In this study, we examine the fossil assemblage recovered from the floor of the Baio cave (Zestoa, northern Iberia), which includes the remains of cold-adapted species. This site has yielded an assemblage that includes herbivores, carnivores and a small number of rodents. Our radiocarbon dating of the remains of a reindeer and a red deer yielded chronologies consistent with the Châtelperronian and Late Aurignacian occupations in the area, indicating a diachronic accumulation. Taphonomic observations suggest carnivores as being the main accumulation agents, with a minimal human contribution, along with the probable accumulation of some remains due to natural causes and/or the cave acting as a natural trap. This new evidence contributes to the existing records from other sites, such as Ekain and Mainea, suggesting severe climatic pulses during the transition from the Middle to the Upper Palaeolithic, which coincides with a complex pattern of Neandertal extinction and their replacement by modern humans. PB Elsevier SN 1777-5728 YR 2025 FD 2025-02 LK https://hdl.handle.net/20.500.14352/119769 UL https://hdl.handle.net/20.500.14352/119769 LA eng NO Rodríguez-Almagro, M., Arriolabengoa, M., Villalba De Alvarado, M., Arceredillo, D., Galán, J., Fernández-García, M., Van Der Made, J., Esteban, J. J., Arsuaga, J. L., Rios-Garaizar, J., Sala, N., & Gómez-Olivencia, A. (2025). Palaeobiological and taphonomic analysis of a site hosting a cold-adapted fauna in Iberia: The Baio cave (Zestoa, gipuzkoa, northern iberian peninsula). Geobios, 88-89, 205-217. https://doi.org/10.1016/j.geobios.2024.05.008 NO Diputación Foral de Gipuzkoa NO Gobierno Vasco NO European Research Council NO MCIN/AEI/10.13039/501100011033 NO Universidad Complutense de Madrid NO Ministerio de Universidades NO European Union NO UPV/EHU NO Generalitat Valenciana NO European Social Fund DS Docta Complutense RD 25 dic 2025