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Proto-Laurasia

Laurasia
Laurasia-Gondwana.svg
Map of Pangea with Laurasia and Gondwana.
Historical continent
Formed 253 Mya
Type Geological supercontinent
Today part of Europe (without Balkans)
Asia (without India)
North America
Smaller continents Laurentia
Baltica
Kazakhstania
Siberia
North China
South China
East China
Tectonic plate Eurasian Plate
North American Plate

Laurasia (pronunciation: /lɔːˈrʒə/ or /lɔːˈrʃiə/) was the more northern of two supercontinents (the other being Gondwana) that formed part of the Pangaea supercontinent around 335 to 175 million years ago (Mya). It separated from Gondwana 215 to 175 Mya (beginning in the late Triassic period) during the breakup of Pangaea, drifting farther north after the split.

The name combines the names of Laurentia, the name given to the North American craton, and Eurasia. As suggested by the geologic naming, Laurasia included most of the land masses which make up today's continents of the Northern Hemisphere, chiefly Laurentia, Baltica, Siberia, Kazakhstania, and the North China and East China cratons.


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