Whether any trace of Ancient Beringian ancestry survives in modern populations — and if so, which populations carry it and at what levels — is a question that the current evidence base cannot definitively answer.

The detection of diluted ancient ancestry in modern populations requires both very large genomic datasets and sensitive statistical methods, and the specific question of Ancient Beringian ancestry in living Native Americans has not been comprehensively studied using the methods that would be needed.

What is clear is that the Ancient Beringian branch was a real and distinct founding lineage, present in Alaska during the early Holocene, and that it did not simply disappear overnight.

The Trail Creek child is evidence that it persisted.