Answer: caveart

AnswerCrossword Clue
CAVEARTLascaux find
CAVEARTGrotte de Cussac attraction
CAVEARTArchaeology discovery
CAVEARTPaleontological study
CAVEARTHandwriting on the wall, maybe
CAVEARTLascaux paintings, e.g.
CAVEARTSome early paintings
CAVEARTAncient graffiti