About the Authors

Caroline E. Sogot

csogot@gmail.com

Affiliations Department of Earth Sciences, University of Cambridge, Cambridge, United Kingdom, Department of Earth Sciences, Natural History Museum, London, United Kingdom

Elizabeth M. Harper

Affiliation Department of Earth Sciences, University of Cambridge, Cambridge, United Kingdom

Paul D. Taylor

Affiliation Department of Earth Sciences, Natural History Museum, London, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CES EMH PDT. Performed the experiments: CES. Analyzed the data: CES. Contributed reagents/materials/analysis tools: CES EMH PDT. Wrote the paper: CES EMH PDT.