About the Authors

Emmanuelle Gérard

Affiliation IPGP-IMPMC, Université Denis Diderot et CNRS, Paris, France

David Moreira

Affiliation Unité d'Ecologie, Systématique et Evolution - CNRS UMR8079, Université Paris-Sud 11, Orsay, France

Pascal Philippot

Affiliation IPGP-IMPMC, Université Denis Diderot et CNRS, Paris, France

Martin J. Van Kranendonk

Affiliation Geological Survey of Western Australia, East Perth, Western Australia, Australia

Purificación López-García

puri.lopez@u-psud.fr

Affiliation Unité d'Ecologie, Systématique et Evolution - CNRS UMR8079, Université Paris-Sud 11, Orsay, France

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: DM PLG. Performed the experiments: EG. Analyzed the data: EG DM PLG. Contributed reagents/materials/analysis tools: PLG. Wrote the paper: EG PLG. Sampling processing: PLG DM. Co-organised the Pilbara Drilling Project: PP MJVK.