Answer
Reptiles, the dominant creatures of Earth during the Mesozoic Era, stretching from 250 million years ago to 65 million years ago, were diverse and included dinosaurs, pterosaurs, and marine reptiles. They thrived in various habitats and evolved remarkable adaptations, establishing their supremacy over land, air, and water. Their reign ended with the Cretaceous-Paleogene extinction event, making way for the rise of mammals.