In dating which is open to question in archeology and anthropology in any case we are even.

You were closer to being correct on Lascaux. The date was 17,000 B.C. from French experts, not 30,000 B.C. So I missed that one. I may have been thinking of the caves in North Africa, but the name doesn't come to me at the moment. I will go back to some of my books when I get a chance.

However Glozel is 15,000 B.C., again according to French archeologists, so you missed that one. Older than you thought

In dating, I always remember the Central American pyramid of the Mayas dated at about 1000 A.D. by carbon dating. A Russian geologist living in the U.S., found volcanic lava which can be extremely accurately dated because of polarity on various sections of the pyramid. There was absolutely no question that the volcano that spread lava on the pyramid erupted in 8,000 B.C. Pretty difficult if the pyramid was not even built for another 9,000 years.

Ronnoco