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Dr Derevyanko said: 'Two fragments of the bracelet of a width of 2.7cm and a thickness of 0.9 cm were found.'The estimated diameter of the find was 7cm.
'Near one of the cracks was a drilled hole with a diameter of about 0.8 cm.
Scientists from the universities of Oxford and Wollongong in Australia are due to meet this month with Russian colleagues.
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But they say the soil around the bracelet was 'uncontaminated by human interference from a later period'.
The soil around the bracelet was also dated using oxygen isotopic analysis.
A stone bracelet believed to have been made by a Paleolithic man could revolutionise our understanding of early human development.
Scientific analysis suggests that the enchanting find is a 65,000 to 70,000 years old.
This image shows a reconstruction of how the bracelet would have looked at the time The manufacturing technology used in the bracelet is seen as being more typical of a later period, for example the Neolithic era, which began around 12,000 years ago.
This image shows a hole that was drilled in the bracelet with a high-rotation drill'Our colleagues from Australia and Oxford are coming here in August, we will be discussing the dating then,' he said, adding that some data was 'ambiguous' and required clarification.'Until then, I will refrain from saying anything.'A consensus on the age will be announced after the experts had discussed the dating, and a major scientific journal report was expected, The Siberian Times reported.
The location of the polished section made it possible to identify the 'top' and 'bottom' of the bracelet and to establish that it was worn on the right hand.'Among the remains of 66 different types of mammal found in the cave were those of extinct woolly mammoths.
In 2000 a tooth from a young adult was found in the cave and in 2008, archaeologists discovered the finger bone of a juvenile Denisovan hominin, dubbed 'X woman'.
The Denisova Cave (pictured), in Siberia, is named after Denis, a Russian hermit who lived there in the 18th century.
It is the only location where the remains of Denisovans have been discovered and has been repeatedly used by them, Neanderthals and Homo sapiens The findings came from an annual summer excavation of Denisova Cave, which has been studied for more than three decades.
Redating of the bracelet would also mean a needle now held to be 50,000 years old is also even more ancient.Tags: Adult Dating, affair dating, sex dating