Vector graphics of the land of the supercontinent Pangaea_Rainer Lesniewski from Getty Images

What is the largest ocean that has ever existed on Earth?

According to UNESCO’s Intergovernmental Oceanographic Commission, Earth’s largest ocean, the Pacific Ocean, covers more than 30 percent of the planet’s surface and stretches 12,000 miles (19,000 kilometers) at its widest point, between Colombia and the Malay Peninsula.International Olympic Committee UNESCO (opens in new tab)). But that gigantic sea is just a remnant of the largest ocean in the world. EarthHistory.

So, what is the largest ocean that has ever existed on our planet?

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