New projectile point style could suggest two separate migrations into North America

(American Association for the Advancement of Science) Through excavation of a site in Texas, researchers have identified a particular style of projectile point -- or triangular blade often attached to a weapon that would be thrown -- dated between 13,500 and 15,500 years ago, they say. This is earlier than typical Clovis-style technologies dated to 13,000 years ago.

from EurekAlert! - Archaeology https://ift.tt/2O3fH6v