Question

Dinosaurs became extinct by the end of

• A. Triassic period
• B. Cretaceous period
• C. Tertiary period
• D. Pliocene epoch

Answer 1

The correct option is B Cretaceous period

Dinosaurs came into existence and dominated during the Jurassic period (206-144 mya) of the Mesozoic era. However, the period that followed it, the Cretaceous period (144-64 mya), witnessed the extinction of the dinosaurs and primitive birds, and the emergence of the first modern birds.