Introduction to the Dinosaur Hall: The Dinosaur Hall is also called the Mesozoic Era Exhibition Hall. You can have a glimpse of the Mesozoic land dominant dinosaurs, ocean dominant ichthyosaurs, and air dominant pterosaurs. Displayed here are the world's largest nest of dinosaur egg fossils from Henan, Asia's largest and heaviest dinosaur with a body cavity, the world's smallest oviraptorosaurus, China's only nodosaur, more than ten precious feathered dinosaurs, and dinosaur footprints and other precious specimens.