some archaeologists say this timeline is incorrect. christian züchner studied the style of the chauvet paintings and compared it to paintings done at other caves. he thought one group of paintings was done between 28,000 and 23,000 years ago. he said the other group was between 18,000 and 10,000 years old. pettitt and bahn also think the chauvet painting styles do not match the dates identified through radiocarbon dating.