What the DNA evidence confirms is that the Windover people were Indigenous Americans — people whose ancestors came to the Americas from northeast Asia in the deep past — and that they belong, in a broad sense, to the same biological ancestry as all Native Americans.

The specific chain of descent is more than the available evidence can reconstruct.

The Limits Of What 1986 Molecular Biology Could Do — And Why That Matters

It is worth dwelling on the methodological context of the 1986 Nature paper, because the paper has sometimes been cited in ways that retroactively apply modern analytical capabilities to what was, in fact, a pioneering but necessarily limited early effort.

In 1986, the tools available for ancient DNA analysis were: