Earth Timeline Earth Timeline 
Earth Timeline 【Earth Timeline 09-2】The Permian Period – The Greatest Extinction in History
Earth Timeline 【Earth Timeline 10】The Triassic Period – Filling the Seats Left Empty by Extinction
Earth Timeline 【Earth Timeline 11】The Jurassic Period – When Dinosaurs Took the Lead on Land
Earth Timeline 【Earth Timeline 12-1】The Cretaceous Period – When Flowers Bloomed and Feathers Spread
Earth Timeline 【Earth Timeline 12-2】The Cretaceous Period – The Day the Asteroid Hit
Earth Timeline 【Earth Timeline 13-1】The Paleogene Period – A World Where Mammals Filled the Empty Seats
Earth Timeline 【Earth Timeline 13-2】The Paleogene Period – Abrupt Warming and the Whales That Returned to the Sea
Earth Timeline 【Earth Timeline 14】The Neogene Period – When the Mediterranean Dried Up
Earth Timeline 【Earth Timeline 15-1】Cenozoic: The Quaternary – Why the Mammoths Died Out at the End of the Last Ice Age
Earth Timeline