Editing Laramide orogeny (section)

==Ecological consequences==
According to paleontologist Thomas M. Lehman, the Laramide orogeny triggered "the most dramatic event that affected Late Cretaceous dinosaur communities in North America prior to their extinction."<ref>{{harvnb|Lehman|2001|p=310}}</ref> This turnover event saw the replacement of specialized and highly ornamented [[centrosaurine]] and [[lambeosaurines]] by more [[basal (phylogenetics)|basal]] upland dinosaurs in the south, while northern [[biomes]] became dominated by ''[[Triceratops]]'' with a greatly reduced [[hadrosaur]] community.<ref>{{harvnb|Lehman|2001|p=324}}</ref>