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International Journal of Earth Sciences

, Volume 92, Issue 5, pp 779–794 | Cite as

Magnetostratigraphy and revised chronology of the late Miocene mammal localities of Samos, Greece

  • Dimitris S. KostopoulosEmail author
  • Sevket Sen
  • George D. Koufos
Original Paper

Abstract

The late Miocene mammalian record in Samos Island, Greece, is extremely important for the Eurasian Neogene mammalian history and chronology. However, due to the mixed nature of old fossil collections and controversies on the stratigraphic position of fossil quarries, great confusion has arisen concerning the recognition of distinct faunal assemblages, their age(s) and biostratigraphic significance. This paper presents the magnetostratigraphy of the late Miocene continental deposits of the fossiliferous Mytilinii Basin, Samos Island, Greece. Old and new sites are stratigraphically controlled with accuracy and correlated with each other. The magnetostratigraphy of seven individual sections, covering the entire Mytilinii Formation, provides good correlation with the Geomagnetic Polarity Time Scale (GPTS). These results, as well as the relocation and precise litho- and magnetostratigraphic correlation of the old and new mammal localities, combined with new and reviewed paleontological data and thorough studying of the numerous radiometric dates, allowed us to define five biostratigraphic horizons. Their correlation with, and implications to the European Neogene mammal chronology ages and zones make up the following discussion and provides a modified determination of the middle Turolian (MN 12) boundaries.

Keywords

Magnetostratigraphy Mammal biochronology Late Miocene Samos Greece 

Abbreviations

GPTS

Geomagnetic Polarity Time Scale

IPGP

Institute de Physic du Globe de Paris

MGL

Musée Cantonal de Géologie, Lausanne

MNHA

Museum of Natural History of the Aegean, Samos

BMNH

Natural History Museum of London

Q

quarries

Fm

Formation

Notes

Acknowledgments

This work is the first author's post-doctorate research project, supported by the National Scholarship Foundation of Greece (I.K.Y.), under the scientific supervision of Dr. S. Sen and Prof. G. Koufos. The Prefecture of Samos, the Museum of Natural History of Aegean (Samos) and the K. and M. Zimalis Foundation also supported our efforts. The Municipality of Mytilinii and Pythagorion helped us by providing technical assistance. We would also like to thank Elsa Tsompachidou, Dora Vlachou, and Dimitris Koufos for their assistance in the field. Thanks are also due to Prof. D. Kondopoulou (Thesssaloniki University), as well as to the staff of the Laboratory of Paleomagnetism and Geodynamics of the University Paris VII-IPGP for their technical support. The first author is grateful to the Museum Cantonal de Geologie, Lausanne and Prof. Aymond Baud, as well as to the Natural History Museum of London and Dr. A. W. Gentry and Dr. A. Currant for their hospitality and permission to access the Samos collection. We wish to also thank Dr. Bernor R.L. (Lab. of Evolutionary Biology, Washington, D.C.) and Dr. Fortelius M. (University of Helsinki) for their critical remarks and valuable review of the manuscript.

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Copyright information

© Springer-Verlag 2003

Authors and Affiliations

  • Dimitris S. Kostopoulos
    • 1
    Email author
  • Sevket Sen
    • 2
  • George D. Koufos
    • 1
  1. 1.School of Geology, Department of GeologyAristotle University of ThessalonikiThessalonikiGreece
  2. 2.Laboratoire de PaléontologieMuséum National d' Histoire Naturelle, CNRS-NMR8569ParisFrance

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