DinosaursOnEarth

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How Long Were Dinosaurs on Earth?

Introduction to Dinosaurs and their Evolutionary Timeline Dinosaurs were a diverse group of reptiles that roamed the earth for millions of years. They first appeared during the Mesozoic Era, which is also known as the Age of Reptiles, and lived on the planet for over 150 million years. Dinosaurs evolved into a wide range of sizes, shapes, and ecological roles,…