The oldest securely dated Clovis points, discovered in Texas, date to approximately 13,500 years ago.
Notes on verification
Multiple independent, credible sources (Discover Magazine, Smithsonian, New Mexico tourism/history site, Texas Beyond History) corroborate the ~13,500-year date for the oldest securely dated Clovis points found in Texas. Distinction from older pre-Clovis stemmed point findings is well noted and doesn't contradict this specific claim.
Sources
- The Clovis Point and the Discovery of America's First Culture (smithsonianmag.com)
- https://www.newmexico.org/blog/post/the-story-of-the-clovis-people/ (newmexico.org)
- https://www.discovermagazine.com/first-americans-gault-projectiles-point-to-earlier-presence-12690 (discovermagazine.com)
- http://www.texasbeyondhistory.net/faq/ (texasbeyondhistory.net)