In which era reptiles were dominated ?

Options

A. Coenozoic era
B. Mesozoic era
C. Paleozoic era
D. Archeozoic era

Answer

**Step-by-Step Solution:**

1. **Understanding Geological Time Scale**: The geological time scale is divided into several major time frames known as eras. Each era is further divided into periods and epochs.

2. **Identifying the Eras**: The six major eras are:
- Azoic Era: No life present.
- Archaeozoic Era: Origin of prokaryotes.
- Proterozoic Era: Emergence of protozoans and some animal phyla.
- Paleozoic Era: Known as the golden age of fishes and amphibians.
- Mesozoic Era: Known as the golden age of reptiles.
- Cenozoic Era: Known as the golden age of birds and mammals.

3. **Focusing on Reptiles**: The question specifically asks about the era in which reptiles dominated.

4. **Identifying the Correct Era**: The Mesozoic Era is recognized as the golden age of reptiles, indicating that reptiles were the dominant group during this time.

5. **Conclusion**: Therefore, the correct answer to the question is the Mesozoic Era.

**Final Answer**: Mesozoic Era.

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