Dinosaurs dominated the world in which of the following geological era?
Devonian
Coenozoic
Jurassic
Mesozoic
Correct answer: Mesozoic
Solution
Dinosaurs dominated during the Mesozoic Era, which is often called the Age of Reptiles. The Jurassic is only one period within that era, while Devonian and Coenozoic are not dinosaur-dominant eras.