10 Questions
Which era saw the first mass extinction event in Earth's history?
Paleozoic Era
Which period was the last mass extinction event?
Cretaceous Period
Which mass extinction event is considered the largest in Earth's history?
Permian-Triassic extinction
How many mass extinction events has the Earth experienced?
6
Which era is characterized by the dominance of dinosaurs and other reptiles?
Mesozoic Era
Which period of the Cenozoic Era saw the rise of mammals and the extinction of dinosaurs?
Cretaceous Period
Which eon is the longest in Earth's history?
Proterozoic Eon
Which period of the Mesozoic Era is known as the 'Age of Reptiles'?
All of the above
Which Cenozoic Epoch is characterized by the rise of modern mammals and the extinction of large dinosaurs?
Paleocene Epoch
Which period of the Paleozoic Era is known as the 'Age of Fishes'?
Devonian Period
Test your knowledge on the geological time scale, focusing on the Mesozoic and Cenozoic Eras. Learn about the subdivisions like the Triassic, Jurassic, and Cretaceous periods, as well as the key events and species that characterized them.
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