Introduction

The discovery of reptile fossils dating back 200–250 million years in both Brazil and Ghana has provided compelling evidence for the existence of ancient supercontinents. These finds are not just remarkable for their age, but for what they reveal about the configuration of Earth’s continents during the late Paleozoic and early Mesozoic eras.

Fossil Evidence: A Window into the Past

• Reptile fossils from this era found in both Brazil (South America) and Ghana (West Africa) are nearly identical in age and type.

• Such fossil similarities across continents that are now separated by the Atlantic Ocean suggest these regions were once physically connected.

The Supercontinent Pangea

• Around 250 million years ago, nearly all of Earth’s landmasses were joined together in a single, massive supercontinent called Pangea.

• Pangea began to break up during the Jurassic period, eventually forming the continents as we know them today46.

• The connection between what is now Brazil and Ghana was part of the southern portion of Pangea, known as Gondwana, which included South America, Africa, Antarctica, Australia, and India34.

Why Not Laurasia, Gondwana, or Tethys Sea?

• Laurasia was the northern part of Pangea, consisting of North America, Europe, and Asia4.

• Gondwana was the southern supercontinent, but the key point is that both Brazil and Ghana were part of the larger landmass, Pangea, during the time these fossils were deposited34.

• Tethys Sea was an ocean that separated Laurasia and Gondwana, not a landmass147.

The Correct Answer

Given the options:

1. Pangea

2. Laurasia

3. Gondwana

4. Tethys Sea

The correct answer is:

(1) Pangea

Conclusion

The discovery of 200–250 million-year-old reptile fossils in both Brazil and Ghana strongly supports the theory that these regions were once joined as part of the supercontinent Pangea. This evidence is a cornerstone for the theory of continental drift and helps explain the shared geological and biological heritage of continents now separated by vast oceans.