Clovis debunked: America’s first settlers did not take the ice-free corridor

Extraits de l'article:

Although the study indicates that some parts of the ice-free corridor had opened up as early as 15,000 years ago, the corridor as a whole did not become ice-free until long after people arrived in the western hemisphere. Clark told Imperial College London that the corridor’s opening was “similar to a zipper” and that this zipper was “opened from the bottom first,” starting down south and “then unzipping from the top.” 

There are other studies that argue the Clovis First hypothesis was incorrect. In the past few decades, archaeologists in South America discovered evidence of human settlement on the continent that is much, much older than Clovis points. Bone, charcoal, and sediment samples recovered from the Chiquihuite cave in North-Central Mexico by the Autonomous University of Zacatecas in 2012, for instance, were dated to 26,000 years, but may be as old as 33,000 years.