Topic ID #28441 - posted 4/25/2013 9:49 AM

Humans may have reached the Americas 22,000 years ago



Jennifer Palmer

Webmaster
 Humans may have reached the Americas 22,000 years ago
    16:30 25 April 2013 by Michael Marshall

Humans lived in South America at the height of the last ice age, thousands of years earlier than we thought, according to a controversial study. A team claims to have found 22,000-year-old stone tools at a site in Brazil, though other archaeologists are disputing the claim.

Christelle Lahaye of Michel de Montaigne Bordeaux 3 University in France and colleagues excavated a rock shelter in north-east Brazil and found 113 stone tools.

The team dated the sediments in which the tools were buried using a technique that determines when the sediments were last exposed to light. Some tools were buried 22,000 years ago – thousands of years earlier than any known human colonisation of the Americas.


Read more here.




Post ID#20132 - replied 4/26/2013 6:27 PM



rkeyo

Moderator
They look similar to the artifacts from Pedra Furada, also in Brazil.

Post ID#20136 - replied 4/28/2013 4:12 AM



Charlie Hatchett

Use-wear analyses of specimens from Pedra Furada:

http://bandstex.globat.com/Pedra%20Furada%20Use%20Wear%20Analyses.doc

The crudeness of the Toca da Tira Peia and Pedra Furada artifacts makes me wonder if  wood was utilized (perishables) for projectiles and other tools.




Charlie Hatchett

www.pre-clovis.com
www.forum.pre-clovis.com
www.blog.pre-clovis.com

(c)1996-2014, archaeologyfieldwork.com

Visit our Employment Network websites: archaeologyfieldwork.com - museumjobsonline.com - For information on advertising on this website, contact webmaster@archaeologyfieldwork.com