Dinosaur Origins and How the First Dinosaurs Learned to Walk
Photo: Wikimedia Commons The first dinosaurs were small, quick animals that walked on two legs about 230 million years ago. They did not ruleā¦
Tag: Triassic Period
When Did Dinosaurs First Appear on Earth?
Dinosaurs first appeared about 233 to 243 million years ago in the Triassic Period. Learn how they evolved, who the first dinosaurs were, and…