Golden age of Dinosaurs was during :

Options

A. Cenozoic era
B. Palaeozoic era
C. Archeozoic era
D. Mesozoic era

Answer

To determine the era known as the "golden age of dinosaurs," we can analyze the options provided:

1. **Cenozoic Era**: This era is known as the age of mammals. Dinosaurs became extinct at the end of the Mesozoic Era, and mammals began to thrive in the Cenozoic Era. Therefore, this option is incorrect.

2. **Paleozoic Era**: This era is characterized by the emergence of ancient life forms, including early fish, amphibians, and reptiles, but it predates the dinosaurs. Thus, this option is also incorrect.

3. **Archeozoic Era**: This era is primarily known for the formation of the Earth's crust and the earliest rocks. It does not pertain to the age of dinosaurs, making this option incorrect as well.

4. **Mesozoic Era**: This is the era during which dinosaurs flourished and diversified. It is often referred to as the "Age of Reptiles" and includes three periods: Triassic, Jurassic, and Cretaceous. Therefore, this is the correct answer.

**Final Answer**: The golden age of dinosaurs was during the **Mesozoic Era**.