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Geological erasMesozoic

Mesozoic

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An artistic reconstruction of a Jurassic scene featuring the sauropod Europasaurus holgeri, iguanodons, Compsognathus, and Archaeopteryx in ancient Germany.

The Mesozoic Era

The Mesozoic Era was a very old time in Earth's history. It lasted from about 252 to 66 million years ago. People often call this time the Age of the Dinosaurs because many big reptiles lived then.

During the Mesozoic, Earth looked quite different from today. The weather was warm and wet. A huge land called Pangaea began to break apart into the continents we know now, like North America and Africa.

Many interesting things happened in the Mesozoic. The first tiny mammals appeared, and the first flowering plants started to grow. Some dinosaurs changed into birds, which fly today. This era had three main parts: the Triassic, Jurassic, and Cretaceous Periods.

Scientists gave the Mesozoic its name. It means 'middle life' because it came between older and newer times in Earth's story. The Mesozoic was a time of big changes and new life on our planet.

Images

A stunning view of Earth from space, captured by astronauts during the Apollo 17 mission.
An artistic drawing of Plateosaurus gracilis, a long-necked dinosaur from the Late Triassic period in Europe.
Map showing Earth during the Early Triassic period, millions of years ago.
Illustration of Sericipterus, a flying reptile from the time of the dinosaurs.
A detailed pencil drawing of a Stegosaurus, a fascinating dinosaur from the Late Jurassic period.
A colorful painting of Tylosaurus, a large marine reptile from the time of the dinosaurs, created for the American Museum in 1899.
A beautiful pine forest in Prospect Hill, Western Sydney, showcasing tall Pinus radiata trees in a tranquil natural setting.
A diagram showing the layers of rock in the Williston Basin, helping us learn about Earth's history.

This article is a child-friendly adaptation of the Wikipedia article on Mesozoic, available under CC BY-SA 4.0.

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