I could research this but honestly don't care enough. How the hell do they determine something is 150,000,000 years old?
In regards to dinosaurs, there are a grip of Christian people/scientists that believe the dinosaurs did exist at one time but died in the flood during the Noah's Ark stage. I can't remember where I'd read it years ago to be honest but haven't there been dinosaur fossils fused into the sides of hills, mountains, and cliffs? Also there are theories that a flood would dramatically increase the aging process. If I'm not mistaken, it doesn't say how long the flood lasted, only that it rained for 40 days and nights. Anyone who has worked near salt water knows how quickly things deteriorate near the ocean. I would imagine that would be true for any artifact of any kind were it subjected to a flood.
Furthermore, Job 40 alludes to a giant animal of some sort called a Behemoth in the Bible which sounds like a dinosaur by the description. There is also mention of the leviathan which sounds a lot like a dragon in Revelations.