General Mesozoic Quiz

How much do you know about the Mesozoic Era?

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Last updated: March 11, 2025

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	Answer
What group of reptiles dominated the land during the Mesozoic?	Dinosaurs
The three periods that made up the Mesozoic were the Triassic, ________, and Cretaceous	Jurassic
What is believed to have caused the end-Cretaceous extinction that killed the dinosaurs?	Asteroid
The beginning of the Mesozoic is marked by the Permian-Triassic extinction, commonly known as the:	Great Dying
During the late Cretaceous, what body of water split North America in half?	Western Interior Seaway

	Answer
This less famous, yet still fascinating body of water engulfed a large part of modern day Australia	Eromanga Sea
This group of reptiles includes both dinosaurs and pseudosuchians	Archosaurs
What main dinosaur lineage included the largest land animals to ever exist?	Sauropodia
What living creatures are known to have evolved from dinosaurs?	Birds
Where did the asteroid that killed the dinosaurs land?	Gulf of Mexico