If is IS a bison vertebrae, we're talking 10,000+ years old...
I would conclude not true due to the projectile point shape. It is not Paleo-like, rather it has more modern shape that has a subconvex base and is side notched. But then, I am no expert...just a casual projectile point collector.
That is correct, though.
The point is middle Archaic Era. 4000-5000 years old.
