While examining weathered rock art in Siberian Russia, archaeologists found additional rock images, some 12 miles away in northwestern Mongolia. When the Russian engravings were discovered in the 1990s and early 2000s at Kalgutinsky Rudnik, the images were thought to be between 8,000 and 10,000 years old. The animals shown were not identifiable, and researchers were not sure if they depicted extinct or imagined creatures.
The new study identified an additional image from the Mongolian sites of a woolly rhinoceros and a baby woolly mammoth. Woolly mammoths went extinct some 15,000 years ago which makes the sites at least that old.
The images were also shown to have been made with stone implements. In addition, the patina on the stones indicates the images are older than previously thought. The researchers concluded the images in the two locations had been drawn in the so-called Kalgutinsky style, which dates to the Upper Paleolithic period (roughly 40,000 years ago to 10,000 years ago).
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