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5.8: Mesozoic Era - The Age of Dinosaurs

Difficulty Level: At Grade Created by: CK-12
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Vocabulary

dinosaur

A diverse group of reptiles; the dominant terrestrial vertebrates for 135 million years, from the beginning of the Jurassic (about 200 million years ago) until the end of the Cretaceous (65.5 million years ago).

Gondwanaland

Southern supercontinent that separated from Pangaea; today’s Southern Hemisphere continents.

Laurasia

Northern supercontinent that separated from Pangaea; today’s Northern Hemisphere continents.

Mesozoic Era

Age of dinosaurs that lasted from 245–65 million years ago.

Pangaea

Supercontinent of all the major land masses; formed during the Permian Period.

mass extinction

Extinction event in which many if not most species abruptly disappear from Earth.

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Difficulty Level:
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Date Created:
Feb 24, 2012
Last Modified:
Aug 28, 2016
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