1. Department of Craniofacial Development and Stem Cell Biology; Dental Institute, King's College London; London UK
2. AP-HP; Ho; ̂; pital Pitié-Salpe; ̂; trière, Service de Chirurgie Maxillofaciale et Stomatologie; Paris F-75013 France
3. UPMC Université Paris 06; F-75005 Paris France
4. UMR CNRS-MNHN-UPMC 7207 & UMR CNRS-MNHN 7179; Muséum national d'histoire naturelle; Paris France
5. Laboratory for Evolutionary Morphology; RIKEN Center for Developmental Biology; Kobe Japan
6. Evo-Devo of Vertebrate Dentition; Institut de Génomique Fonctionnelle de Lyon, Université de Lyon, CNRS UMR 5242, UCBL 1, Ecole Normale Supérieure de Lyon; Lyon France
7. European Synchrotron Radiation Facility; Grenoble France