Evidence for this entity includes Cynognathus, Glossopteris, and Lystrosaurus fossils, and the closing of the Rheic and Khanty seas during the Alleghenian and Uralic orogenies precipitated its formation. It followed Rodinia and Columbia, and was formed from Avalonia, Baltica, Laurentia, and Cimmeria. Surrounded by Panthalassa and containing the Tethys Ocean, its existence was first proposed by Alfred Wegener to support his theory of continental drift. Its breakup occurred 200 million years ago, when Laurasia split from Gondwana. For 10 points, 
Evidence for this entity includes Cynognathus, Glossopteris, and Lystrosaurus fossils, and the closing of the Rheic and Khanty seas during the Alleghenian and Uralic orogenies precipitated its formation. It followed Rodinia and Columbia, and was formed from Avalonia, Baltica, Laurentia, and Cimmeria. Surrounded by Panthalassa and containing the Tethys Ocean, its existence was first proposed by Alfred Wegener to support his theory of continental drift. Its breakup occurred 200 million years ago, when Laurasia split from Gondwana. For 10 points, name this supercontinent whose name is Greek for "all Earth."
Evidence for this entity includes Cynognathus, Glossopteris, and Lystrosaurus fossils, and the closing of the Rheic and Khanty seas during the Alleghenian and Uralic orogenies precipitated its formation.
Pangaea 