
This image shows stone tools found at the site of Nor Geghi, Armenia: top – biface tool; bottom – a Levallois core.
The study, published today in the journal Science, examines thousands of stone artifacts retrieved from Nor Geghi 1, a unique site preserved between two lava flows dated to 200,000-400,000 years ago. Layers of floodplain sediments and an ancient soil found between these lava flows contain the archaeological material. The dating of volcanic ash found within the sediments and detailed study of the sediments themselves allowed researchers to correlate the stone tools with a period between 325,000 and 335,000 years ago when Earth's climate was similar to today's.
The stone tools provide early evidence for the simultaneous use of two distinct technologies: biface technology, commonly associated with hand axe production during the Lower Paleolithic, and Levallois technology, a stone tool production method typically attributed to the Middle Stone Age in Africa and the Middle Paleolithic in Eurasia. Traditionally, Archaeologists use the development of Levallois technology and the disappearance of biface technology to mark the transition from the Lower to the Middle Paleolithic roughly 300,000 years ago.















Comment: More details about the skull injuries can be found in Skeleton Lake of Roopkund, India. The surprise is what killed them ... See also:
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And for more clues, check out SOTT radio's: Behind the Headlines: Who was Jesus? Examining the evidence that Christ may in fact have been Caesar!