659997977 BC (Mesozoic era)

You were an average Stegosaurus, walking around and eating ferns, cycads, and pines since you were a herbavore, its a peaceful life, minus running away from the large and small meat eaters you come across once in a while《》Right now you were walking back to your pile until you see a tall bracosarus eating your pines that you piled up on the dirt with your group backing up near you