The research began with the 2015 discovery of what is believed to be a Clovis point arrowhead, which Gramly says could be 12,800 or more years old and worth as much as $15,000.

Stanford says the artifact is “a classic Clovis point”, dating from 13,500 to 14,000 years ago and made of a silicate, probably jasper. The museum will conduct a morphometric analysis to study ...

"Clovis artifacts are among the oldest in the new world, and many people think they were made for the first time in the new world," Stanford said after accepting the arrowhead on Monday.