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Which modern continents formed the northern landmass called Laurasia during the Jurassic Period?
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Jurassic Period
Distribution of landmasses, mountainous regions, shallow seas, and deep ocean basins during the late Jurassic Period. Included in the paleogeographic reconstruction are the locations of the interval's subduction zones.
During the Jurassic Period, the northern supercontinent of Laurasia was composed of the landmasses that would eventually form modern-day North America and Eurasia.2
While Laurasia is often described in broader geological contexts as including North America, Europe, and Asia, the paleogeographic records for the Jurassic Period specifically identify the northern region as consisting of North America and Eurasia. These landmasses were separated from the southern supercontinent, Gondwana, by the Tethys Sea, a tropical east-west seaway.12