Introduction to the ancient reptiles and ancient birds exhibition hall: In the ancient reptiles exhibition area, various reptile fossils are on display, including the largest freshwater turtle fossil discovered in my country, ancient crocodile fossils, known as the Mesozoic Era Sea monsters, marine reptiles, pterosaurs, the dominant aerial creatures of the Mesozoic era, dinosaurs, the dominant dinosaurs of the Mesozoic era, and mammal-like reptiles, the ancestors of mammals.