Phanerozoic Eon Life Forms Quiz

Which era in the Phanerozoic Eon is known for the dominance of dinosaurs?

• Paleozoic Era

• Mesozoic Era

• Cenozoic Era

• Precambrian Era

What major event marks the end of the Mesozoic Era?

• The Cambrian Explosion

• The Permian-Triassic Extinction

• The Cretaceous-Paleogene Extinction

• The Great Oxygenation Event

Which era is known as the "Age of Mammals"?

• Paleozoic Era

• Mesozoic Era

• Cenozoic Era

• Precambrian Era

The Paleozoic Era is characterized by the emergence of which type of life forms?

• Mammals

• Reptiles

• Marine life and early land plants

• Birds

Which mass extinction event marks the end of the Paleozoic Era?

• The Ordovician-Silurian Extinction

• The Permian-Triassic Extinction

• The Triassic-Jurassic Extinction

• The Cretaceous-Paleogene Extinction

During which era did the first birds appear?

• Paleozoic Era

• Mesozoic Era

• Cenozoic Era

• Precambrian Era

What is the primary characteristic of the Cenozoic Era?

• Dominance of marine life

• Dominance of reptiles

• Dominance of mammals

• Dominance of amphibians

Which era is known for the "Cambrian Explosion"?

• Paleozoic Era

• Mesozoic Era

• Cenozoic Era

• Precambrian Era

How many mass extinction events are generally recognized in the Phanerozoic Eon?

• 2

• 3

• 5

• 7

Which era follows the Mesozoic Era in the Phanerozoic Eon?

• Paleozoic Era

• Cenozoic Era

• Precambrian Era

• Archean Era