Dinosaurs and humans?

I am not a creationist at all, I am an atheist, as a matter of fact... But recently I've seen depictions of ancient human art, over 3 k years old, depicting interaction between humans and dinosaurs, too precise to be a fluke. Now I really dont believe in creation, so this is not from a religious P.O.V.... but is it possible some varieties of dinos may have survived the holocaust? Or is maybe human kind as we know it ( abilis, sapiens and sapiens sapiens) a lot older?? Is there a possibility dinos and humans may have really interacted?