Leusden-Den Treek, pines from the Bølling-Allerød interstadial. Projectnummer dendrochronologie (Stichting RING): 2016009

Dendrochronological research project. For each studied sample a dendrochronological fact sheet including a photo and the average tree-ring measurement series are available through the Supplementary Materials of Bazelmans et al. 2021, doi: 10.1016/j.quascirev.2021.107199. The year in which the research stored in dataverse.nl/dataverse/stichtingring took place, from 1985 onwards can be found in the report number, with for example ‘P:1997001’ implying that this particular study took place in 1997.

Interpretations of the most likely wood provenance and estimations of the number of missing sapwood rings, if included in the original research report, are based on the knowledge at the time and may be subject to later refinement.