Extended Data Fig 10: Molecular age distribution.
From: A 2-million-year-old ecosystem in Greenland uncovered by environmental DNA
Results of running the ancient Betula chloroplast molecular dating analysis BEAST v1.10.4 (ref. 47) with different priors and nucleotide substitution models. Using only coding regions, and therefore fewer total sites, gives a larger confidence interval as expected. Results reported in the text are for the red curve, with a flat prior and a GTR+Γ4 substitution model.
