Daspletosaurus, scariest dinosaur before T-Rex

Daspletosaurus lived in a full world. There were einiosaurus, and styracosaurus. At that time, he had two claws and lived in the cretaceous just like tyrannosaurus rex, who came after daspletosaurus. They hunt meat, but plant eaters scavenged for plants for their meal. When they died, new dinosaurs took their place. After the Cretaceous was gone then then ice age appeared and all the other creatures and then we humans came along and then that's it.

Hot Hot Desert

Oviraptor ate eggs, and he would steal them from other dinosaurs in his world. Oviraptors and velociraptor and protoceratops and protocephly and shuvia all lived in the desert. He liked to eat eggs, meat and plants. 

Oviraptor fossils were discovered in something by China. (My dad says it's Mongolia). That's it.