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Long Plio-Pleistocene Terrestrial Record of Climate Change and Mammal Turnover in Southern Spain

Published online by Cambridge University Press:  20 January 2017

Jordi Agustı́ ,
Oriol Oms  and
Eduard Remacha
Jordi Agustı́
Affiliation:
Institut de Paleontologia ‘M. Crusafont’ (DB-Unidad Asociada CSIC), c/ Escola Industrial 23, Sabadell, 08201, Spain
Oriol Oms*
Affiliation:
Fac. Ciències, Geologia, Universitat Autònoma de Barcelona, Bellaterra, 08193, Spain
Eduard Remacha
Affiliation:
Fac. Ciències, Geologia, Universitat Autònoma de Barcelona, Bellaterra, 08193, Spain
*
1E-mail: [email protected].
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Abstract

Cyclostratigraphic analysis of the Pliocene Zújar section (Guadix-Baza Basin, southeastern Spain) has enabled the recognition of a number of climatically forced cycles reflecting alternating dry and wet periods. Peaks of aridity are recorded at ca. 3.95, 3.55, 3.2, 2.8, and 1.8 myr B.P. The first dry period at about 4.0 myr B.P. corresponds to the early Ruscinian Mammal age, while the second arid interval at about 3.6 myr B.P. corresponds to the establishment of the Mediterranean double seasonality. The significant mammal turnover between the late Ruscinian and early Villanyian stages is placed between chron 2An.2n and the very base of chron 2An.1n, coincident with the dry phase recognized at about 3.2 myr B.P. The fourth aridity maximum at 2.8 myr B.P. roughly coincides with the Equus event in western Europe and is probably related to the beginning of the glacial–interglacial dynamics in the Northern Hemisphere. Finally, the last dry peak at about 1.8 myr B.P. is probably related to the set of mammalian events characterizing the transition from the late Pliocene faunas to those of the early Pleistocene.

Keywords

PliocenePleistoceneclimate changemammal turnovercyclostratigraphy
Type
Research Article
Information
Quaternary Research , Volume 56 , Issue 3 , November 2001 , pp. 411 - 418
Copyright
University of Washington

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