Sixth Grade
Worksheets
Dinosaurs!
For 160 million years, dinosaurs ruled the world. All animals that lived during that time weren't dinosaurs. All dinosaurs lived on land. Pterosaurs were flying reptiles, but they weren't dinosaurs. There were large reptiles that lived in the seas, but they weren't dinosaurs, either. They are called plesiosaurs and ichthyosaurs. There were many different kinds of dinosaurs. They didn't all live at the same time. Some kinds of dinosaurs died out. Other kinds came into being. Apatosaurus, also called Brontosaurus, and Stegosaurus were extinct before Tyrannosaurus rex lived. About 65.5 million years ago, nearly all dinosaurs, including Tyrannosaurus, Triceratops, and .....
