About the Authors

Nizar Ibrahim

nibrahim@uchicago.edu

Affiliation Department of Organismal Biology and Anatomy, University of Chicago, Chicago, Illinois, United States of America

David J. Varricchio

Affiliation Department of Earth Sciences, Montana State University, Bozeman, Montana, United States of America

Paul C. Sereno

Affiliation Department of Organismal Biology and Anatomy, University of Chicago, Chicago, Illinois, United States of America

Jeff A. Wilson

Affiliation Museum of Paleontology and Department of Earth and Environmental Sciences, University of Michigan, Ann Arbor, Michigan, United States of America

Didier B. Dutheil

Affiliation 15 Passage du Buisson Saint-Louis, Paris, France

David M. Martill

Affiliation School of Earth and Environmental Sciences, University of Portsmouth, Portsmouth, United Kingdom

Lahssen Baidder

Affiliation Laboratoire de Géosciences, Faculté des Sciences Aïn Chock, Université Hassan II, Casablanca, Morocco

Samir Zouhri

Affiliation Laboratoire de Géosciences, Faculté des Sciences Aïn Chock, Université Hassan II, Casablanca, Morocco

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: NI DJV PCS. Performed the experiments: NI DJV PCS JAW. Analyzed the data: NI DJV PCS JAW DBD DMM LB SZ. Contributed reagents/materials/analysis tools: NI PCS DMM LB SZ. Wrote the paper: NI DJV PCS JAW DBD DMM LB SZ. Designed the initial versions of the figures for this paper: NI DJV.