Information on the ancient genomes used in this study.

“ID_publication” refers to the ID of the genome used in the original publication, and “Sample_ID” refers to the ID used in this study. “Average Date (BP)” is the average date in years before present. “Lab PI” refers to the senior author of the study. “Included in final analysis” shows the genomes included in the list of 50 after removing divergent (outlier) genomes. (XLSX)