Life Through Time: Life in the Mesozoic Era

The Mesozoic era, known as the age of reptiles, spanned from 251 to 65.5 million years ago. Dinosaurs were the dominant vertebrates, thriving for over 150 million years. Fossil evidence reveals their diversity, including land, sea, and air dwellers. A mass extinction event 65 million years ago led to their demise. During this era, dinosaurs evolved into birds, with early fossils like protoavis and Archaeopteryx. The Mesozoic also saw the rise of flowering plants and small mammals, which became dominant after the dinosaurs' extinction.

What era is known as the age of reptiles?

• Mesozoic

• Proterozoic

• Paleozoic

• Cenozoic

Which group of animals dominated the Mesozoic era?

• Mammals

• Dinosaurs

• Amphibians

• Birds

What significant evolutionary development occurred during the Mesozoic era?

• The rise of mammals

• The emergence of birds

• The extinction of reptiles

• The appearance of amphibians

Which of the following is an early bird fossil from the Mesozoic era?

• Tyrannosaurus

• Triceratops

• Stegosaurus

• Archaeopteryx

What type of plants became widespread during the Mesozoic era?

• Flowering plants

• Ferns

• Conifers

• Mosses