Home > Diorama > Timeline > Diorama Timeline > Jurassic Related Pages Diorama Storyline Read a detailed description of how the Diorama's 300 million years of history unfold. Dinosaur Timeline Learn more about the Jurassic Period and the dinosaurs who lived at that time. Dinosaur Explorer See additional photos and learn more about the Brontosaurus, Stegosaurus, and Allosaurus