Professorial Research Associate, University College London

Regius Professor of Geology, Edinburgh

Professor of Marine Science, University of South Florida

University of Bremen & AWI

Professor of Micropalaeontology, MARUM, University of Bremen

Geomarine Research, and University of Auckland

Maître de conférence, Université de Bordeaux

Full Professor of Palaeontology, Universidad de Zaragoza, Spain

Professor, Dept. of Geological Eng., Middle East Technical University, Ankara-Turkey

Professor of Micropaleontology, University of Bonn