About the Authors

David M. Baker

dmbaker@hku.hk

Affiliations Smithsonian Institution, Marine Science Network, Washington, D.C., United States of America, Geophysical Laboratory, Carnegie Institution of Washington, Washington, D.C., United States of America

Lee Weigt

Affiliation Smithsonian Institution, Laboratories of Analytical Biology, Museum Support Center, Suitland, Maryland, United States of America

Marilyn Fogel

Affiliation Geophysical Laboratory, Carnegie Institution of Washington, Washington, D.C., United States of America

Nancy Knowlton

Affiliation Smithsonian Institution, Department of Invertebrate Zoology, Washington, D.C., United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: DB LW NK. Performed the experiments: DB. Analyzed the data: DB LW. Contributed reagents/materials/analysis tools: LW MF NK. Wrote the paper: DB LW MF NK.