KnowraCretaceous–Paleogene extinction eventLinked fromLinked fromThe 99 pages that link to Cretaceous–Paleogene extinction event, each with the reason it gives.All 99Broader topic 13Related 75Narrower topic 4Compared with 7Chicxulub craterNarrower topic: Chicxulub is the impact structure associated with this abrupt biological crisis.Luis Walter AlvarezNarrower topic: Alvarez’s later hypothesis addressed the cause of this extinction.PachycephalosaurusNarrower topic: Pachycephalosaurus lived shortly before this event ended the age of non-avian dinosaurs.Alvarez hypothesisNarrower topic: The hypothesis explains the cause of this broader extinction event.