1. Muséum National d'Histoire Naturelle; CNRS UMR 7207 Paleobiodiversité et Paléoenvironnements; CP38, 8 rue Buffon,; F-75005; Paris; France
2. Institute of Geology; University of Lausanne; UNIL-Dorigny, Bâtiment Anthropole 3182,; CH-1015; Lausanne; Switzerland
3. Institute of Mineralogy and Geochemistry; University of Lausanne; Bâtiment Anthropole 3182,; CH-1015; Lausanne; Switzerland
4. Department of Geosciences; Princeton University; 219 Guyot Hall,; Princeton; New Jersey; 08544; USA
5. NW Museum of Natural History; 5004 SW Lowell Street,; Portland; Oregon; 97221; USA
6. Section of Earth and Environmental Sciences; University of Geneva; rue des Maraîchers 13,; CH-1205; Geneva; Switzerland
7. Department of Earth and Planetary Sciences; University of New Mexico; Albuquerque; New Mexico; 87131; USA