Question

Choose the correct answers from the alternatives given .
The crisis that drastically reduced the diversity of dinosaurs and other reptiles occurred

• A. During the height of the great coal forests
• B. At the beginning of the Mesozoic era
• C. At the end of the Mesozoic era
• D. At the end of the Permian period

Answer 1

The correct option is C At the end of the Mesozoic era

The Mesozoic Era is the age of the dinosaurs and lasted almost 180 million years from approximately 250 to 65 million years ago. This era includes 3 well known periods called the Triassic, Jurassic, and Cretaceous periods. A mass-extinction marked the beginning and end of the Mesozoic Era. The event that caused the transition from the Paleozoic era to the Mesozoic era was the greatest extinction this earth has seen. This extinction wiped out about 95% of all marine life and 70% of land-life including dinosaurs and other reptiles.

So, the correct option is 'At the end of the Mesozoic era'.