By: Marc Kaufman
Scientists have found and dated the oldest human remnants ever uncovered in the Americas -- a discovery that places people genetically similar to Native Americans in Oregon more than 14,000 years ago and 1,000 years earlier than previous estimates.
Using radiocarbon dating and DNA analysis, an international team concluded that fossilized feces found five feet below the surface of an arid cave are significantly older than any previous human remains unearthed in the Americas.
The samples were discovered near a crude dart or spear tip chiseled from obsidian, as well as bones of horses and camels that were then common in the region. The researchers described their finding as a "smoking gun" in the long-running debate over when and where humans first inhabited the New World.
"What's so exciting here is that we have cells from real people, their DNA, rather than samples of their work or technologies," said Dennis Jenkins of the University of Oregon, who oversaw the dig. "And we have them on the Oregon landscape 1,000 years before what used to be the earliest samples of human remains in the Americas."
A whole lot more is here: http://www.washingtonpost.com/wp-dyn/content/article/2008/04/03/AR2008040302156.html
Friday, April 4, 2008
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