Introduction to the Cretaceous period: The Cretaceous period is generally in order from early to late, showing the representative dinosaur skeleton fossils or models from the Cretaceous period, mainly from Henan Province: Keshisaurus bushi, Zhongyangsaurus luoyang, Buckosaurus, Zhuge Nanyang dragon, Dromaeosaurus, Psittacosaurus, Ruyang Yellow River giant dragon, Henan Baotianman dragon, Spiny-nosed Qingdaosaurus, Tyrannosaurus rex, Henan Luanchuan raptor, Oviraptor, etc., as well as cycads, Ginkgo biloba species, conifers, ferns and angiosperms to restore the landscape.