Question

Choose the correct order of eras in the Phanerozoic eon.

• A. Paleozoic Archaeozoic Cenozoic
• B. Archaeozoic Paleozoic Proterozoic
• C. Paleozoic Mesozoic Cenozoic
• D. Mesozoic Archaeozoic Proterozoic

Answer 1

The correct option is C Paleozoic Mesozoic Cenozoic

The Phanerozoic eon is divided into 3 eras. The Palaeozoic era (540 - 253 mya) was the age of fishes and plants, and also when life moved from the waters to land. The Mesozoic era (253 - 67 mya) was when reptiles, especially dinosaurs, ruled the world. The last era, called the Cenozoic era (67 mya - till date ) has witnessed the extinction of many primitive reptiles, and the emergence and diversification of mammals.