RT Journal Article T1 Identification problems of arid environments in the Neogene–Quaternary mammal record of Spain A1 Hernández Fernández, Manuel A1 Alberdi, María Teresa A1 Azanza, Beatriz A1 Montoya, Plinio A1 Morales Romero, Jorge A1 Nieto, Manuel A1 Peláez-Campomanes de Labra, Pablo AB In this work, we investigate if broadly used methodologies are adequate to detect periods of aridity based on the Spanish fossil record and try to infer which of them were more or less severe. Thus, we present a qualitative statistical approach to two popular palaeoecological methodologies: ecological diversity and cenograms. Discriminant models, derived from modern localities of known biome, determined the probable biomes of Neogene–Quaternary fossil assemblages. Principal component analyses (PCA) provided additional inference on their ordination within an aridity gradient. While models work adequately with modern faunas, the analyses of the palaeocommunities showed that their ecological structure is very different from that of modern faunas, affecting the models’ performance. Nevertheless, the PCA was able to establish an aridity gradient. Our results suggest that independent tools of palaeoecological analysis are critical when reconstructing palaeoenvironments. PB Elsevier SN 1095-922X YR 2006 FD 2006 LK https://hdl.handle.net/20.500.14352/110809 UL https://hdl.handle.net/20.500.14352/110809 LA eng NO Hernández Fernández, M., et al. «Identification Problems of Arid Environments in the Neogene–Quaternary Mammal Record of Spain». Journal of Arid Environments, vol. 66, n.º 3, agosto de 2006, pp. 585-608. DOI.org (Crossref), https://doi.org/10.1016/j.jaridenv.2006.01.013. NO Comisión Interministerial de Ciencia y Tecnología NO Ministerio de Ciencia y Tecnología NO Ministerio de Educación y Ciencia DS Docta Complutense RD 6 abr 2025