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Uranium series dating on the bone also gives it a minimum age of 146,000 years.

Aubert’s team found calcite crusts near the rear of the painted animal and used a technique called uranium series analysis to date them to at least 40,000 years old.

They calculated its age by directly testing the bone using a technique called uranium series dating, which determines the age of a material by comparing levels of radioisotopes it contains.

Next, the team used a technique called uranium series dating to gauge the bone’s age.

“I personally would never use uranium series dating of bones alone to assign age, it needs to be supported and consistent with other dating results,” said Dirk Hoffmann, an expert on uranium dating at Leipzig.