Pikimachay ("Flea cave") is an archaeological site in the Ayacucho Valley of Peru. The site has been dated to around 20,000 BCE, however this evidence has been disputed and currently a date of 12,000 BCE seems more likely.Duccio Bonavia, Peru, hombre e historia, vol. I, p. 89. Artifacts discovered in the site include basalt tools, chert tools and projectile and fishtail points, along with evidence that humans lived in the area contempraneously with giant sloths and horses.Dillehay, The Settlement of the Americas==Notes==Humphrey and Stanford, Pre-Llano Cultures of the Americas
Richard S. MacNeish was the first achaeologist to explore Pikimachay. Evidence of long-term human occupation has been found at the site, though that evidence still remains controversial.
Through the aid of radiocarbon dating the earliest human presence has been dated back to 22,000 years BP, though others have reinvestigated the data to show an earlier date of 17,000 yeas BP.
Flea Cave (Pikimachay), Minnesota State University, Mankato.
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