Institute of Geology and Mineralogy, University of Cologne, Zülpicher Str. 49a, 50674 Cologne, Germany

Department of Geology, University of Leicester, Leicester, LE1 7RH, UK

NERC Isotope Geosciences Laboratory (NIGL), British Geological Survey, Keyworth, Nottingham, NG12 5GG, UK

Department of Animal Ecology & Systematics, Justus Liebig University, Heinrich-Buff-Ring 26–32, 35392 Giessen, Germany

Institute of Geology and Mineralogy, University of Cologne, Zülpicher Str. 49a, 50674 Cologne, Germany

Seminar of Geography and Education, University of Cologne, Gronewaldstraße 2, 50931 Cologne, Germany

Institute of Geological Sciences & Oeschger Centre for Climate Change Research, University of Bern, Baltzerstrasse 1+3, 3012 Bern, Switzerland

Department of Geology, University of Leicester, Leicester, LE1 7RH, UK

Dipartimento di Scienze della Terra, University of Pisa, via S. Maria 53, 56126 Pisa, Italy

Dipartimento di Scienze della Terra e Geoambientali, University of Bari, via Orabona 4, 70125 Bari, Italy

IDPA-CNR, via Mario Bianco 9, Milan, Italy