Dinosaurs lived du

Dinosaurs lived during the Mesozoic Era, which spanned from approximately 250 million to 66 million years ago. This era is divided into three periods: the Triassic Period (250–201 million years ago), the Jurassic Period (201–145 million years ago), and the Cretaceous Period (145–66 million years ago). All non-avian dinosaurs went extinct at the end of the Cretaceous Period, about 66 million years ago.