Geography
How Continental Drift Explains Fossil Distribution Across Oceans
Quick fact
The fossil of the reptile Mesosaurus was found in southern Africa and eastern South America, but nowhere else on Earth, providing early evidence that these continents were once connected.
Why this is interesting
You've probably seen a world map and wondered why South America's east coast fits so neatly into Africa's west coast. But have you ever wondered why the same fossil of a land-dwelling reptile is found only in those two continents, separated by the Atlantic Ocean?