A research team led by a Texas A & M University professor believes spearheads excavated in central Texas may be the oldest found in North America, says Science Advances .
The spearheads were found in 2015, about 40 miles northwest of Austin at the Debra L. Friedkin site, named after the owner. Michael Waters, Texas A & M anthropology professor and director of the Center for the Study of the First Americans, said the discovery could change the understanding of when and how the earliest people in North America explored and settled.
Based on the dating of the sediment in which they were found, the researchers estimate that the spearheads are between 1
At Friedkin's location, the new spearheads were found under a layer containing Clovis artifacts. To find such artefacts in deposits just below Clovis artifacts, Waters describes as "the gold standard". The projectile points that were probably used for the hunt had two previously unknown styles, which predated before Clovis. Waters believes that the discovery means that the earlier point style is prior to the Clovis style, which affects migration and how people reached America at the end of the last ice age.
Other researchers on the project were from Baylor University and the University of Texas. Their findings were published on October 24 in the journal Science Advances .