Triassic

First slide

The Triassic period was the first of the dinosaur periods in the Mesozoic.

Triassic

Jurassic

Second slide

The Jurassic period was the second of the dinosaur periods in the Mesozoic.

Jurassic

Cretaceous

Third slide

The Cretaceous period was the third and last of the dinosaur periods in the Mesozoic.

Cretaceous

Triassic

The Triassic period was the first of the dinosaur periods. It marked the beginning of the Mesozoic Era. The Earth was largely arid and the supercontinent Pangaea existed.