Question

Golden era/age of reptiles is

• A. Palaeozoic
• B. Mesozoic
• C. Recent
• D. Proterozoic

Answer 1

Answer: (B)

Mesozoic

• Proterozoic Era (2500-544 mya) - Marked by the origin and proliferation of first eukaryotic organisms. Soft-bodied organisms were present.
• Palaeozoic Era (544-245 mya) - Multi-cellular organisms acquire hard body parts - including teeth, bone, mandibles and vertebral column. Occurrence of first fishes, chordates, amphibians, reptiles and complex vascular plants. End marked by major extinction of invertebrates.
• Mesozoic Era (245-65 mya) - Commonly known as "Age/ Era of Reptiles" or "Age/ Era of Dinosaurs" as the era began with the diversification of reptiles after major extinction and the appearance of dinosaurs. It is the age when giant reptiles and dinosaurs roamed around the Earth. It is also marked by the appearance of first mammals, birds, primates and the flowering plants. The era end by a major extinction causing disappearance of dinosaurs.

Thus the correct is 'Mesozoic'