We would like to thank all the curators, collection manager, and scientists who helped us allowed us to study and provided access to material: C. Argot and G. Billet (Muséum national d’Histoire naturelle, Paris), D. Geraads (Museum national d’Histoire Naturelle) for providing the Sivatherium specimen, E. Robert (Université Claude Bernard, Lyon 1), D. Berthet (Musée des Confluences Lyon), M. Orliac (Université M...