The idea of dinosaurs being on the entire earth with humans is interesting but ultimately a doomsday future for humans. If there were a few hundred sprinkled on earth we could control that if it was hundreds of thousands or up to a few million we would become extinct pretty quick. The T-Rex and other huge meat eaters would be a novelty and we could deal with them but it would be the raptors,the flying 747 sized dinosaurs along with the ocean ones that would fuck us up. Imagine a pack of 100 raptors in Los Angeles or a swarm of Pterosaurs in the hundreds flying all over the state of Florida. That idea is crazy.