Which period is the age of reptiles ?

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks which geological period is referred to as the "age of reptiles."

2. **Identifying the Era**: Reptiles, particularly dinosaurs, were predominant during a specific era in the geological timescale.

3. **Recognizing the Mesozoic Era**: The Mesozoic Era is known for the dominance of reptiles, especially dinosaurs. This era is often referred to as the "Age of Reptiles" or the "Golden Age of Reptiles."

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

**Final Answer**: The age of reptiles is the Mesozoic Era.

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