Over 300 million years ago, all the continents we know today were joined together in a massive supercontinent called Pangaea. This video takes you on a fascinating journey back in time to explore ...

Mammals and dinosaurs arrived on the scene during the time of Pangea. Pterosaurs took to the skies, while ichthyosaurs flourished in the oceans. ... Pangea’s break up began around 195 million years ...

But by the time Pangea Ultima forms, CO2 levels could double naturally to as high as 1,120 parts per million (today, CO2 levels are around 418 parts per million).

Pangea Ultima—first described in 2003 by the paleogeographer Christopher Scotese, ... often used for near-term climate-change projections, to a very different time period and question.