1. Department of Earth and Environmental Sciences LMU München Munich80333Germany
2. Dipartimento di Scienze della Terra "A. Desio" Università degli Studi di Milano Milano20133Italy
3. Department of Earth Sciences Durham University DurhamDH1 3LEUK
4. Senckenberg Forschungsinstitut und Naturkundemuseum Frankfurt Frankfurt am Main60325Germany
5. Institute of Paleobiology Polish Academy of Sciences Warsaw00‐818Poland
6. GEOMAR‐Helmholtz Centre for Ocean Research Kiel24148Germany
7. Universidad Nacional de Educación a Distancia, UNED Madrid28040Spain
8. Earth Science Institute Slovak Academy of Sciences Banská Bystrica974 01Slovakia
9. Central Facility for Electron Microscopy University of Ulm Ulm89081Germany