Question

Dinosaurs occurred in which geological era in earth crust

• A. Coenozoic era
• B. Palaeozoic era
• C. Mesozoic era
• D. Proterozoic era

Answer 1

The correct option is C Mesozoic era

Dinosaurs are a diverse group of animals of the clade Dinosauria. They first appeared during the Triassic period in mesozoic era (it is lasted about 180 million years and is divided into three periods, the Triassic, the Jurassic and the Cretaceous.) 231.4 million years ago, and were the dominant terrestrial vertebrates for 135 million years until the end of the cretaceous period

So, the correct answer is 'Mesozoic era'