Mesozoic252–201 Mya · 51 My
Triassic
Life is starting over after the worst disaster in Earth's history — and the dinosaurs are bit players, for now.
Mesozoic201–145 Mya · 56 My
Jurassic
Giants rule lush fern forests as sauropods become the largest animals ever to walk Earth.
Mesozoic145–66 Mya · 79 My
Cretaceous
The peak of the dinosaurs, the birth of the flower, and the most famous ending in Earth's history.