Some forty prehistoric engravings, more than 14,000 years old, have been discovered in Finistere, at the town of Plougastel-Daoulas, in Brittany (northwestern France).
Depicting several animals, these artistic vestiges date back to the Upper Palaeolithic period and are extremely rare in Europe.
Read more at archaeologynewsnetwork.blogspot.com/2017/03/14000-years-old-engraved-tablets.html#qMS1uqLGExkMDcwR.99
Also:
journals.plos.org/plosone/article?id=10.1371/journal.pone.0173037