What definitive proof did Jesse Figgins have for the habitation of North America as early as 10,000 years ago?

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Jesse Figgins provided definitive proof of the habitation of North America as early as 10,000 years ago through the discovery of a projectile point embedded in the rib of an extinct form of bison, which was found at the Folsom site in New Mexico. This discovery was significant because it directly associated human-made tools with Pleistocene era fauna, thereby proving the presence of humans in North America at that time.

What Definitive Proof Did Jesse Figgins Have for the Habitation