About the Authors

Alan Pradel

apradel@amnh.org

Affiliation Department of Vertebrate Paleontology, American Museum of Natural History, New York, New York, United States of America

Paul Tafforeau

Affiliation European Synchrotron Radiation Facility, Grenoble, France

John G. Maisey

Affiliation Department of Vertebrate Paleontology, American Museum of Natural History, New York, New York, United States of America

Philippe Janvier

Affiliation Muséum National d'Histoire Naturelle, Centre de Recherches sur la Paléobiodiversité et les Paléoenvironnements (CRP2), UMR 7207 du CNRS, Département Histoire de la Terre, Paris, France

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AP PJ. Performed the experiments: PT AP. Analyzed the data: AP. Contributed reagents/materials/analysis tools: AP PT. Wrote the paper: AP JM PJ.