Through excavation of the Debra L. Friedkin site northwest of Austin, Texas, a team of archaeologists has identified a particular style of projectile point dated between 13,500 and 15,500 years ago — this is earlier than typical Clovis-style technologies dated to 13,000 years ago. The team found more than 100,000 artifacts, including 328 tools and 12 complete and fragmented projectile points (about 3-4 inches, or 7.6-10.2 cm, long), excavated from the Buttermilk Creek Complex horizon of the Debra L. Friedkin site.From 19 optically stimulated luminescence dates of sediments, they determined the artifacts were between 13,500- and 15,500- years-old.“There is no...