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![A large Dinosaurs skull](/sites/default/files/styles/600_x_440_crop/public/2023-11/web_page_animals_past_dinosaurs_1280x880.jpg?itok=-f-O0BP8)
Many types of dinosaurs roamed the earth from about 225 to about 65 million years ago. Different species of dinosaurs flourished then went extinct throughout that entire period. For example, a T. Rex was around much later than the Stegosaurus was.
Once again, a mass extinction occurred around 65 million years ago, bringing the reign of dinosaurs to an end.