Laurussia was a minor supercontinent which formed in the Devonian period. It is often called the Old Red Sandstone Continent or Euramerica.
Laurussia included much of what is now northern Europe, Greenland and North America.
Laurussia became part of Pangaea in the Permian. In the Jurassic, when Pangaea rifted into two supercontinents, Gondwana and Laurasia, Laurussia became part of Laurasia.