GARY HINCKS / SCIENCE PHOTO LIBRARY GARY HINCKS / SCIENCE PHOTO LIBRARY
Jurassic North America. Artwork of an Earth globe showing the land masses that later formed North America, as they appeared during the Jurassic Period (200 to 145 million years ago). During the Jurassic and Cretaceous periods, today's continents were forming through continental drift following the break up of the supercontinent of Pangea. For North America in the Cretaceous Period, see image C018/0205.
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