1. Department of Geological & Atmospheric Sciences Iowa State University Ames Iowa USA
2. Center for Applied Geoscience University of Tübingen Tübingen Germany
3. Naturschutzgebietes Heiliges Meer Landschaftsverband Westfalen‐Lippe (LWL) Museum für Naturkunde Recke Germany
4. Environmental Engineering Institute École Polytechnique Fédérale de Lausanne Lausanne Switzerland
5. Institute for Geology and Paleontology University of Münster Münster Germany