New ancient genomes from across the hemisphere added resolution to the picture that the Anzick findings had begun to sketch.

Each new genome contributed something, and each one also complicated the picture in some way.

Genome data from ancient individuals in the Pacific Northwest, from the Great Basin, from Brazil, from the Caribbean, and from many other regions painted an increasingly detailed picture of the complex population movements and divergences that had shaped the Americas over the past fifteen thousand years.

Some findings confirmed the broad framework suggested by Anzick-1: that the founding population or populations of the Americas had come from northeastern Asia and were more closely related to living Native Americans than to any other modern group.