Acknowledgements
We are grateful to everyone working at the Oxford Radiocarbon Accelerator Unit (ORAU), University of Oxford. We are particularly grateful to Rachel Wood (ANU) and Katerina Douka (ORAU) for comments on the text. Finally we thank Nicholas Conard (Tübingen) for useful discussions on the Geissenklösterle sequence.
Disclosure statement
No potential conflict of interest was reported by the authors.
Additional information
Funding
Notes on contributors
T. F. G. Higham
T. F. G. Higham is a researcher at the University of Oxford. He works in the Radiocarbon Accelerator Unit (ORAU). He is interested in radiocarbon dating in all parts of the timescale and improving the method and its reliability.
Godfrey S. Heep
Godfrey S. Heep worked as a statistician at the Institute of Rural Statistics in Lake Hawea, New Zealand.