About the Authors

Dylan Gaffney

dylan.gaffney@otago.ac.nz

Affiliation Department of Anthropology and Archaeology, University of Otago, Dunedin, 9054, New Zealand

Glenn R. Summerhayes

Affiliation Department of Anthropology and Archaeology, University of Otago, Dunedin, 9054, New Zealand

Anne Ford

Affiliation Department of Anthropology and Archaeology, University of Otago, Dunedin, 9054, New Zealand

James M. Scott

Affiliation Department of Geology, University of Otago, Dunedin, 9054, New Zealand

Tim Denham

Affiliation School of Archaeology and Anthropology, College of Arts and Social Sciences, Australian National University, Canberra, ACT, 0200, Australia

Judith Field

Affiliation School of Biological, Earth and Environmental Sciences, The University of New South Wales, Kensington, NSW, 2052, Australia

William R. Dickinson

Affiliation Department of Geoscience, University of Arizona, Tucson, AZ, 85721, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: DG GRS AF. Performed the experiments: DG AF JMS WRD. Analyzed the data: GRS DG TD. Contributed reagents/materials/analysis tools: GRS. Wrote the paper: DG GRS AF JF. Investigated chronostratigraphy: TD.