About the Authors

Scott A. Hocknull

scott.hocknull@qm.qld.gov.au

Affiliation Geosciences, Queensland Museum, Brisbane, Queensland, Australia

Philip J. Piper

Affiliation Archaeological Studies Program, University of the Philippines, Quezon City, Philippines

Gert D. van den Bergh

Affiliation School of Earth and Environmental Sciences, University of Wollongong, Wollongong, New South Wales, Australia

Rokus Awe Due

Affiliation Indonesian Centre for Archaeology, Jakarta, Indonesia

Michael J. Morwood

Affiliation School of Earth and Environmental Sciences, University of Wollongong, Wollongong, New South Wales, Australia

Iwan Kurniawan

Affiliation Geological Survey of Indonesia, Bandung, Indonesia

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SAH. Performed the experiments: SAH PP GvdB MM. Analyzed the data: SAH. Wrote the paper: SAH PP GvdB MM. Integral to the excavation and recovery of material for this study: RAD IK.