About the Authors
Department of Geology & Geophysics, Yale University, New Haven, Connecticut, United States of America
UCD School of Geological Sciences, University College Dublin, Belfield, Dublin, Ireland
Yale Peabody Museum of Natural History, Yale University, New Haven, Connecticut, United States of America
Senckenberg Forschungsinstitut und Naturmuseum, Forschungsstation Grube Messel, Messel, Germany
Department of Applied Physics, Yale University, New Haven, Connecticut, United States of America
The authors have declared that no competing interests exist.
The author(s) have made the following declarations about their contributions: Conceived and designed the experiments: MEM PJO. Performed the experiments: MEM. Analyzed the data: MEM HN HC. Contributed reagents/materials/analysis tools: SW. Wrote the paper: MEM DEGB PJO SW.