Research published in Science reconfirms the age of ancient remains and artifacts found in a cave in Oregon.

The Paisley Caves go back at least 14,300 years. But the date was criticized as imprecise when it was first publicized in 2008.

So researchers went back and took more samples of materials from the cave. Using new dating techniques, along with DNA testing, the study found that the items are among the oldest in the Americas.

Researchers hope to extract more DNA samples from the remains in the cave to determine whether they can be linked with present-day populations.

Get the Story:
Clovis People Had Company in Early Colonization of the Americas (Scientific American 7/13)
Oregon artifacts indicate a distinct ancient group (AP 7/13)
Spearheads and DNA Point to a Second Founding Society in North America (The New York Times 7/13)
Who lived here first? New info on North America's earliest residents (The Los Angeles Times 7/13)
Oregon cave discovery suggests lost ancient American culture (The Christian Science Monitor 7/12)

Related Stories:
DNA research points to at least three major indigenous groups (7/12)

Get the Study:
Clovis Age Western Stemmed Projectile Points and Human Coprolites at the Paisley Caves (Science July 2012)

Related Stories:
DNA research points to at least three major indigenous groups (7/12)