Quibas-Sima : A unique 1 ma-old vertebrate succession in southern Iberian Peninsula
Piñero, Pedro (Institut Català de Paleoecologia Humana i Evolució Social)
Agustí, Jordi 1954- (Universitat Rovira i Virgili. Àrea de Prehistòria)
Laborda-López, Casto (Universidad de Jaén. Departamento de Geología)
Duval, Mathieu (Centro Nacional de Investigación Sobre La Evolución Humana)
Zhao, Jian-xin (University of Queensland. School of Earth and Environmental Sciences)
Blain, Hugues-Alexandre (Institut Català de Paleoecologia Humana i Evolució Social)
Furió Bruno, Marc (Institut Català de Paleontologia Miquel Crusafont)
Laplana, César (Museo Arqueológico Regional de la Comunidad de Madrid)
Rosas, Antonio (Museo Nacional de Ciencias Naturales. Departamento de Paleobiología)
Sevilla García, María Paloma (Universidad Complutense de Madrid. Departamento de Geodinámica, Estratigrafía y Paleontología)

Date:	2022
Abstract:	With the identification of the Jaramillo geomagnetic subchron, the late Early Pleistocene vertebrate succession of the Quibas-Sima section (Quibas karstic complex, southern Spain) represents a time span scarcely recorded in Europe. To complete the existing chronostratigraphic framework published earlier by Piñero et al. (2020), we provide here additional new information about the lithostratigraphy and micromammal succession along the sedimentary sequence. Seven lithostratigraphic units have been differentiated (QS-1 to QS-7) at Quibas-Sima, documenting an almost continuous small mammal record, including representatives of the families Soricidae, Erinaceidae, Rhinolophidae, Vespertilionidae, Arvicolidae, Muridae, Gliridae, Sciuridae, Leporidae and Ochotonidae. The small mammal association indicates that units QS-1 to QS-4 have an intermediate biostratigraphic position between the sites of Fuente Nueva 3 (ca. 1. 2 Ma) and Cueva Victoria (ca. 0. 9 Ma). New numerical age result from the combined U-series/ESR dating of one equid tooth from QS-3 consistently support the general chronostratigraphic framework based on magnetostratigraphy and biostratigraphic inferences by confirming a post-Olduvai age. Based on an estimation of the sedimentation rate during the Jaramillo subchron, these broad chronological constraints may be confidently refined to approx. 1. 1-0. 9 Ma for the whole sequence. While we acknowledge the existing uncertainty associated to this age range, it is nevertheless consistent with biostratigraphic evidence indicating that all stratigraphic units most likely do not significantly differ from a chronological point of view. Both independent proxies (biostratigraphy and the sedimentation rate) strongly suggest that the sedimentary sequence covers a relatively short time interval (<200 kyr). These results place the Quibas-Sima sequence as one of the longest and most complete pre-Jaramillo (QS-1) to Jaramillo (QS-2 to QS-5) continental vertebrate succession in Europe.
Grants:	Agencia Estatal de Investigación PID 2020-117289 GB-I00 Agencia Estatal de Investigación CGL2016-75109-P Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-859 Agencia Estatal de Investigación CEX2019-000945-M Agencia Estatal de Investigación RYC2018-025221-I
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Language:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Subject:	Jaramillo subchron ; Early Pleistocene ; Combined U-Series/ESR dating ; Biostratigraphy ; Micromammals
Published in:	Quaternary Science Reviews, Vol. 283 (May 2022) art. 107469, ISSN 0277-3791

DOI: 10.1016/j.quascirev.2022.107469

Available from: 2024-05-31 Postprint

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Institut Català de Paleontologia Miquel Crusafont (ICP)
Articles > Research articles
Articles > Published articles