“Previous analyses had dated the charcoal drawings back to 22,000–18,000 BP. However, the comprehensive dating program carried out in the cave now indicates a much older age (32,000–30,000 BP) for the black drawings, which are the only one in the cave datable with the radiocarbon-dating method. All the results are published in the Proceedings of the National Academy of Sciences.

 

http://www.ibtimes.co.uk/hold-ho-radiocarbon-dating-chauvet-cave-artworks-reveals-new-chronology-human-occupation-1554216