The Triassic Period
56:50
The Jurassic Period
43:35
The Permian Period
1:22:29
The Cretaceous Period
57:12
Permian-Triassic Mayhem: Earth's Largest Mass Extinction
51:03
The Dinosaurs of the Triassic Period: A Summary of the First Dinosaurs and their Rise to Dominance
25:52
The Complete History of the Earth Early Triassic
1:00:51
The Cambrian & Ordovician Periods
11:58