As Pangaea split into Laurasia and Gondwana, new coastlines and shallow seas—like the Tethys and Sundance—created fertile niches for dinosaurs to flourish worldwide. Continents drifting apart reshaped ...

The ocean plate was once the seafloor of Neotethys — an ocean that formed when the supercontinent Pangaea broke up into a northern continent, Laurasia, and a southern continent, Gondwana about ...