The mandible of Salbatore II : A new Ursus deningeri site in the northern Iberian Peninsula
Villalba de Alvarado, Mónica (Universitat Autònoma de Barcelona. Departament de Geologia)
Prat-Vericat, Maria (Institut Català de Paleontologia Miquel Crusafont)
Arriolabengoa, Martin (Universidad del País Vasco)
Madurell-Malapeira, Joan (Universitat Autònoma de Barcelona. Departament de Geologia)
Gómez-Olivencia, Asier (Universidad del País Vasco)

Fecha:	2025
Resumen:	Ursus deningeri, together with Ursus spelaeus sensu lato, are chronospecies that belong to the Quaternary iconic cave bear lineage. They inhabited Iberia from the late Early to the late Middle Pleistocene. Here we describe a complete bear mandible recovered from Salbatore II cave (Basque Country). To assess its taxonomy, we compared it with other European Pleistocene cave and brown bears. Comparisons were made concerning its morphology and using both traditional and 3D geometric morphometrics analyses. The mandible has several morphological similarities with the cave bears such as a high corpus and deep masseter fossa. However, it exhibits a coronoid process that leans backwards, a pointed pterygoid process, and the p1 and p3 are present. These are characteristics customarily associated with U. deningeri and U. arctos. Metric analyses show that Salbatore II fits within the cave bear variation, with a minimum overlap with brown bears once size is accounted for. However, geometric morphometric analyses show that Salbatore II is similar to U. arctos, but within U. deningeri variation. Based on the overall size and the morphological characteristics, Salbatore II displays U. deningeri affinities with many ancestral characteristics, suggesting a minimum mid-Middle Pleistocene age, a chronology rarely recorded in the Cantabrian region.
Ayudas:	Agencia Estatal de Investigación PID2021-122355NB-C31 Agencia Estatal de Investigación CNS2023-143739 Ministerio de Educación, Cultura y Deporte FPU15/06882 Agencia Estatal de Investigación RYC-2017-22558
Nota:	Altres ajuts: CERCA Programme/Generalitat de Catalunya
Derechos:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió acceptada per publicar
Materia:	Cave bear ; Geometric morphometrics ; Evolution ; Early Pleistocene ; Middle Pleistocene
Publicado en:	Geobios, Vol. 88-89 (February 2025) , p. 275-287, ISSN 1777-5728

DOI: 10.1016/j.geobios.2024.08.019

26 p, 8.1 MB

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Documentos de investigación > Documentos de los grupos de investigación de la UAB > Centros y grupos de investigación (producción científica) > Ciencias > Institut Català de Paleontologia Miquel Crusafont (ICP)
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