Research in Texas in 2018 uncovers an earlier group of humans under the Clovis layer. While the earliest migrations were considered to be roughly 13,000 years ago over the Bering landbridge during the last Ice Age, this settlement is dating at 16,000 to 20,000 years ago. This opens up the possibility that there were earlier migrations from Europe.
Excerpt: “These projectile points are unique. We haven’t found anything else like them,” Williams said. “Combine that with the ages and the fact that it underlies a Clovis component and the Gault site provides a fantastic opportunity to study the earliest human occupants in the Americas.”