2069: It turns out that Dinosaurs aren't actually animals, instead they were aliens that crash landed on Earth on the permian meteor that was actually a spaceship.

3000: potato

3021: It turns out that a hundred years ago, people thought dinosaurs were animals

3030: Dinosaurs come to earth and it turns out they’re humanoid with wacky skeletons.

3040: Turns out dinosaurs were constantly horny and hook up with humans

3050: It's ok, they were all sent to horny jail

3069: Turns out that sending all the horny dinosaurs to the same facility wasn't a good idea.

128,469: It turns out the giant murder lizard depiction of dinosaurs were accurate

420,696,969: Humans find a prophecy and learn that Horny giant murder lizards would break out of their facilities and do stuff...

694,20,696: It happened. Humans went extinct.

Good riddance.