Before Pangu – what? — Science NewsSeptember 30, 1972
The continents as we know them formed when the primitive continent Pangaea broke apart, and its fragments took a long, slow journey to their present location. This process took about 200 million years. But the crust is estimated to be 4.5 billion years old… [Scientists are exploring] The puzzling question of what happened in the billions of years before Pangaea fell apart.
Fossil and rock evidence suggests an intermittent relationship between the two continents that existed long before Pangaea. Most scientists agree that the earliest known supercontinent, called Nuna, formed about 1.5 billion years ago.it splits and reassembles as Rodinia supercontinent About 1 billion years ago.The third supercontinent is called Pannotia may have formed around 600 million years ago near the South Pole, but its existence is debatable. Today, scientists are predicting how the continents will merge in the future.One Supercontinent known as Amasia may form 250 million years later, as the continents drifted towards the North Pole (SN: January 21, 2017, p. 18).