POSSIBLE Evidence of Humans in CA 130,000 Years Ago!

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from Nature: https://www.nature.com/nature/journal/v544/n7651/full/nature22065.html

"The earliest dispersal of humans into North America is a contentious subject, and proposed early sites are required to meet the following criteria for acceptance: (1) archaeological evidence is found in a clearly defined and undisturbed geologic context; (2) age is determined by reliable radiometric dating; (3) multiple lines of evidence from interdisciplinary studies provide consistent results; and (4) unquestionable artefacts are found in primary context1, 2. Here we describe the Cerutti Mastodon (CM) site, an archaeological site from the early late Pleistocene epoch, where in situ hammerstones and stone anvils occur in spatio-temporal association with fragmentary remains of a single mastodon (Mammut americanum). The CM site contains spiral-fractured bone and molar fragments, indicating that breakage occured while fresh. Several of these fragments also preserve evidence of percussion. The occurrence and distribution of bone, molar and stone refits suggest that breakage occurred at the site of burial. Five large cobbles (hammerstones and anvils) in the CM bone bed display use-wear and impact marks, and are hydraulically anomalous relative to the low-energy context of the enclosing sandy silt stratum. 230Th/U radiometric analysis of multiple bone specimens using diffusion–adsorption–decay dating models indicates a burial date of 130.7 ±â€‰9.4 thousand years ago. These findings confirm the presence of an unidentified species of Homo at the CM site during the last interglacial period (MIS 5e; early late Pleistocene), indicating that humans with manual dexterity and the experiential knowledge to use hammerstones and anvils processed mastodon limb bones for marrow extraction and/or raw material for tool production. Systematic proboscidean bone reduction, evident at the CM site, fits within a broader pattern of Palaeolithic bone percussion technology in Africa3, 4, 5, 6, Eurasia7, 8, 9 and North America10, 11, 12. The CM site is, to our knowledge, the oldest in situ, well-documented archaeological site in North America and, as such, substantially revises the timing of arrival of Homo into the Americas."

 

lagrangedave

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They were probably European decent. DNA testing is going to dispel a lot of theories about ancient North American civilizations.
 

Nicodemus

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This subject has been debated for a number of years now. I wonder when more evidence will show up across various parts of the continent?
 
They were probably European decent. DNA testing is going to dispel a lot of theories about ancient North American civilizations.
Why would you think that? I do remember something of finding the remains of an early European mummy or skeleton in the US. Seems like the Native Americans tried to hush it up for some reason.

The first Homo was found in California. Interesting.

"The CM site is, to our knowledge, the oldest in situ, well-documented archaeological site in North America and, as such, substantially revises the timing of arrival of Homo into the Americas."

http://www.nature.com/nature/journal/v544/n7651/full/nature22065.html?foxtrotcallback=true
 
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I find it interesting and the debate about this is stimulating. What a lot of people don't consider is that there is real political ramifications. There are reasons that the local native americans fought the study of the Kennewick Man's remains or any other truly ancient human remains found in the US. They could point to the ....what is the PC term now, oh yeah "original inhabitants" might not be the original inhabitants and that when they arrived on scene they did exactly what the Europeans did to them.....Full disclosure, I have had a dna test done and I do not have one iota of native American genetic material.
 
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