'Old wood' effect in radiocarbon dating of prehistoric cremated bones?

► Radiocarbon dating of a cremated human bone is compared with the precise dendrochronological age of an associated oak coffin. ► The cremated bone shows an age discrepancy of 73 ± 26 14C years older than the dendrochronological age. ► The age discrepancy is best accounted for by the so called 'old wood' effect from the wood used in the cremation pyre.