If you got stuck after the first question, the new Age of the Dinosaur exhibition at London's Natural History Museum will remedy that. (newscientist.com)
Today, thanks to an abundant fossil record and more than a century of collecting by paleontologists, Laramidia is the best known major landmass for the entire Age of Dinosaurs, with dig sites spanning from Alaska to Mexico. (sciencedaily.com)
Another bone of contention for the team concerns the boundary between the Cretaceous — the last age of the dinosaurs — and the Paleogene, the period that began 66 million years ago. (sciencemag.org)