About the Authors

N. Adam Smith

adam_smith@nescent.org

Address Current address: The National Evolutionary Synthesis Center, Durham, North Carolina, United States of America

Affiliation Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, Austin, Texas, United States of America

Julia A. Clarke

Affiliation Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, Austin, Texas, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: NAS JAC. Analyzed the data: NAS JAC. Wrote the paper: NAS JAC.