The study's main limitation is that it relies on the current library of ancient genomes available. (sciencedaily.com)
Previously, ancient genome analysis has been limited to samples from northern and arctic regions. (sciencedaily.com)
The genome of a 12,600 - year - old skeleton from Montana, called the Anzick Child, is the only other published ancient genome from the Americas that is older than 10,000 years. (scientificamerican.com)