1. Cambrian

2. Devonian

3. Triassic

4. Jurassic

Here's a quick breakdown:

* Cambrian: The first period of the Paleozoic Era, known for the "Cambrian Explosion" where life diversified rapidly.

* Devonian: A period in the Paleozoic Era, known for the rise of fish and the first land vertebrates.

* Triassic: The first period of the Mesozoic Era, known for the emergence of dinosaurs and the supercontinent Pangaea.

* Jurassic: The second period of the Mesozoic Era, famous for its large dinosaurs like Brachiosaurus and Stegosaurus.