Professor of Geology, University of Salamanca, Spain

Emeritus Scientisy, US Geological Survey

Senior Scientist, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research …

University of Lille

Professor, University College London

Distinguished Professor of paleontology, ISE-M, Université de Montpellier

Professor of Geosciences, University of Massachusetts

Associate Researcher, Institute of Earth Sciences, Lausanne University, honorary-director …

Palynova

Professor of Stratigraphy, Department of Earth and Ocean Dynamics, Faculty of Earth …