The supercontinent cycle
One continent. One ocean.
If you had a time capsule and traveled back in time 200 million years ago, you’d experience Earth as one the supercontinent of Pangea.
From coast to coast, Pangea was surrounded by the superocean Panthalassa. Gradually, continental drift teared the supercontinent apart into our current placement of continents.
Today, we pick up the pieces and look at the clues of Pangea. For example, notice the striking similarities of continental boundaries aligning in a world map.