The first and most obvious clue about Pangaea's existence was that the "continents fit together like a tongue and groove," something that was quite noticeable on any accurate map, Murphy said.

200 million years ago, the planet looked very different than it did now. Plate tectonics had arranged the world's continents into a single massive landmasses: Pangaea. Today I attempt to use my ...

The mantle is split up into two domains — the African and the Pacific — that emerged when supercontinent Pangaea broke apart. When you purchase through links on our site, we may earn an ...