| The salt was formed in a sea that existed when the supercontinent Pangea broke up some 200 million years ago. |
| Some 250 million years ago, all the continents were grouped into a single supercontinent known as Pangaea. |
| The hundred million years and more of Pangean history saw a succession of cosmopolitan animal dynasties spread over the entire supercontinent. |
| If the past pattern holds, Dr Rogers predicts that a new supercontinent will be formed in about 500m years' time. |
| Destined for a broad public, shows the nine most important stages in the break-up of this supercontinent, on the basis of recent scientific work. |
| Recent palaeomagnetic and geodynamic constraints envisage an early Mesoproterozoic supercontinent that at least included Laurentia and Baltica. |
