1. Department of Earth Sciences, Zumberge Hall of Science, University of Southern California, 3651 Trousdale Parkway, Los Angeles, California 90089-0740, USA
2. Department of Earth Sciences, Natural History Museum, London, SW7 5BD, UK
3. Centre for Life’s Origins and Evolution, University College London, London, WC1E 6BS, UK
4. Naturalis Biodiversity Center, Darwinweg 2, 2333 CR Leiden, the Netherlands
5. Present address: Natural History Museum of Denmark, University of Copenhagen, Øster Voldgade 5-7, 1350 Copenhagen K, Denmark
6. Department of Natural Sciences, National Museum of Scotland, Chambers Street, Edinburgh, EH1 1JF, UK
7. Dorfstraße 10, 18546 Sassnitz/Rügen, Germany
8. State Natural History Museum Braunschweig, Gaußstr. 22, 38106 Brunswick, Germany
9. Ludwig-Maximilians-Universität München, Department of Earth and Environmental Sciences, Palaeontology & Geobiology, Richard-Wagner-Straße 10, 80333 Munich, Germany
10. GeoBio-CenterLMU, Richard-Wagner-Straße 10, 80333 Munich, Germany