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TopicArchaeologists think humans may have arrived earlier than thought to Americas
FlashOfLight
04/27/17 2:51:06 AM
#1:


(features short image-text video)

https://www.washingtonpost.com/news/speaking-of-science/wp/2017/04/26/archaeology-shocker-study-claims-humans-reached-the-americas-130000-years-ago/?utm_term=.75195f9a1a53

Some 130,000 years ago, scientists say, a mysterious group of ancient people visited the coastline of what is now Southern California. More than 100,000 years before they were supposed to have arrived in the Americas, these unknown people used five heavy stones to break the bones of a mastodon.


If Deméré's analysis is accurate, it would set back the arrival date for hominins in the Americas and suggest that modern humans might not have been the first species to arrive. But the paper has raised skepticism among many researchers who study American prehistory. Several said this is a classic case of an extraordinary claim requiring extraordinary evidence — which they argue the Nature paper doesn’t provide.

“You can’t push human activity in the New World back 100,000 years based on evidence as inherently ambiguous as broken bones and nondescript stones,” said David Meltzer, an archaeologist at Southern Methodist University. “They need to do a better job showing nature could not be responsible for those bones and stones.”


“It is a bold claim,” Deméré acknowledged, “an order of magnitude older age than has been suggested.” But he asked his colleagues not to dismiss the research out of hand based only on a number.

“This evidence begs for some explanation,” he said, “and this is the explanation we’ve come up with.”

The rocks and mastodon remains were identified in 1992 by paleontologist Richard Cerutti, a colleague of Deméré's at the San Diego Museum of Natural History.


The lengthy article then goes on to say that the reasoning for attributing the findings to be that of humans early in the Americas, is via the breaks on the mastodon bones they found. They also go on to say that they are careful to speculate on the identity of the humans who may have been the cause of the tools thought to have been used on the mastodon.
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