Data Homogeneity scores. Chronology type “C” refers to reconstructions derived froma composite of material from living trees, remnant, historical and/or sub-fossil wood. Type “L” refers to reconstructions derived from only living trees. Temporal clustering (Yes) indicates reconstructions composed of data from distinct sites or species concentrated in discrete periods over the past 1000 years. Other abbreviations: AM ¼ archeological material; HM ¼ historical material; RM ¼ remnant material; SF ¼ subfossil material (MacDonald and Case, 2005).