About the Authors

Aleksandra V. Birn-Jeffery

Affiliations Structure and Motion Lab, Royal Veterinary College, Hatfield, Hertfordshire, United Kingdom, School of Earth Sciences, University of Bristol, Wills Memorial Building, Bristol, United Kingdom

Charlotte E. Miller

Affiliation Evolutionary Anthropology, Duke University, Durham, North Carolina, United States of America

Darren Naish

Affiliation Ocean and Earth Science, National Oceanography Centre, University of Southampton, Southampton, United Kingdom

Emily J. Rayfield

Affiliation School of Earth Sciences, University of Bristol, Wills Memorial Building, Bristol, United Kingdom

David W. E. Hone

dwe_hone@yahoo.com

Affiliations School of Biological and Chemical Sciences, Queen Mary University of London, London, United Kingdom, School of Biology and Environmental Science, University College Dublin, Dublin, Ireland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: DWEH EJR CEM ABJ. Performed the experiments: CEM ABJ. Analyzed the data: CEM ABJ. Contributed reagents/materials/analysis tools: EJR DWEH. Wrote the paper: ABJ CEM DN EJR DWEH.