Question

Dinosaurs were present during

• A. paleozoic era
• B. mesozoic era
• C. coenozoic era
• D. proterozoic era

Answer 1

Answer: (B)

mesozoic era

Answer 2

Mesozoic era is the geological era that extended from the end of the Palaeozoic era, about $248$ million years ago, to the beginning of the Cenozoic era, about $65$ million years ago. It comprises the Triassic, Jurassic, and Cretaceous periods. The Mesozoic era is often known as the "Age of reptiles" as these animals, which included the dinosaurs, pterosaurs, and ichthyosaurs, became the dominant life form; most became extinct before the end of the era.