I haven’t seen any cave paintings made by ancient man depicting dinosaurs yet. Plenty of ancient mammals like mammoth, aurochs, ibex, and rhinoceros. But if the Bible specifically says 6,000 years, I think we should throw out the discoveries and knowledge the study of anthropology, archaeology, physics, biology, and chemistry for the last two hundred years have given humanity.
>> “I haven’t seen any cave paintings made by ancient man depicting dinosaurs yet” <<
Thousands of rocks dated about 1400 years old in Peru and Ecuador with very accurate engravings of many different species of reptiles that you call dinosaurs. They have been dubbed “burial stones” because some of them were found on burial sites.
Now there is a company in Central America that is making and selling copies of them.