GEOLOGY

Detailed explanation-1: -Final answer: Age of reptiles was known as Mesozoic Era.

Detailed explanation-2: -The Mesozoic Era (251.9 to 66 million years ago) was the “Age of Reptiles.” During the Mesozoic, Pangaea began separating into the modern continents, and the modern Rocky Mountains rose. Dinosaurs, crocodiles, and pterosaurs ruled the land and air.

Detailed explanation-3: -The second era in the Phanerozoic eon is the Mesozoic era. It is also called the golden age of reptiles, as it witnessed the emergence of a huge diversity of reptiles. This era is divided into three periods-Triassic, Jurassic and Cretaceous.

Detailed explanation-4: -The Mesozoic era is also called the golden age of the reptiles because ‘dinosaurs’ (giant reptiles) were dominant on the earth in this era.

Detailed explanation-5: -Reptiles originated approximately 300 million years ago during the Carboniferous period. One of the oldest-known amniotes is Casineria, which had both amphibian and reptilian characteristics.