The supercontinent Pangaea formed around 300 million years ago from the collision of two large continents Gondwana and Laurasia. Roughly 100 million years later, Pangaea’s landmass started to break up, eventually forming the modern continents of North and South America, Africa, Antarctica, India, and Australia. Evidence that these continents were once joined comes from them having similar fossils and geological deposits dating back to about 300 to 200 million years ago.
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Pangaea, a supercontinent that formed 300 million years ago from the merging of Gondwana and Laurasia, began to break apart around 200 million years ago, leading to the creation of present-day continents with matching fossils and geological features.