About the Authors
Department of Classics, Ancient History and Archaeology, University of Birmingham, Birmingham, United Kingdom
Oxford Radiocarbon Accelerator Unit, Research Laboratory for Archaeology and the History of Art, University of Oxford, Oxford, United Kingdom
Akademie der Wissenschaften Heidelberg, Heidelberg, Germany
The authors have declared that no competing interests exist.
Conceived and designed the experiments: KW TH BK. Performed the experiments: KW TH BK. Analyzed the data: KW TH BK. Contributed reagents/materials/analysis tools: KW TH BK. Contributed to the writing of the manuscript: KW TH BK.