The Mesozoic Era is a geologic era that spans from about 252 to 66 million years ago. It is often referred to as the "Age of Dinosaurs" due to the dominance of these creatures during this time. The Mesozoic Era is divided into three periods: the Triassic, Jurassic, and Cretaceous.
The Triassic Period lasted from about 252 to 201 million years ago. During this time, the supercontinent Pangaea began to break apart, leading to the opening of the Atlantic Ocean. The first dinosaurs and mammals appeared, and the land was dominated by reptiles and early dinosaurs.
The Jurassic Period lasted from about 201 to 145 million years ago. This period is known for the dominance of dinosaurs, including the iconic long-necked sauropods and meat-eating theropods. The first birds and flowering plants also appeared during this time.
The Cretaceous Period lasted from about 145 to 66 million years ago. It was a time of great change and innovation in the natural world. The continents continued to drift apart, leading to the modern-day configuration. This period saw the rise of new groups of dinosaurs, including the armored ankylosaurs and the iconic Tyrannosaurus rex. It also saw the emergence of flowering plants and modern insects.