The Reason Marvel's Dinosaurs Went Extinct is Revealed, And It's More Disturbing Than You Expect

Warning: Spoilers for Uncanny X-Men #14!The dinosaurs have finally been given a canonical reason for their extinction in the Marvel Universe. Dinosaurs have always been an important staple of Marvel lore, to the point that, in official continuity, Marvel's first superhero was a dinosaur. That being said, Marvel has seldom touched on the actual extinction of these pre-historical creatures.