The Neozoic
205-381 million years hence
The most characteristic feature of the Neozoic is the presence of a supercontinent. The world has one giant continent, Pangaea Ultima, and one global ocean, Moana Katoa. For the first third of the Neozoic, Pangaea Ultima has a vast, arid interior, with the most habitable regions being on the coasts and near the poles. Reptiles do particularly well in this environment, while some aquatic groups take steps onto land.
The second third of the Neozoic is marked by a gradual return to more temperate conditions. As forests spread and large algal mats develop in the oceans, oxygen levels increase. Carbon is removed from the atmosphere as these producers die and are buried. Due to this and the northward march of the supercontinent, the last third of the Neozoic is witness to an intense glaciation. The Neozoic ends with another extinction caused by mass volcanism.
215 million years
222 million years
243 million years
280 million years
310 million years
350 million years