Laurasia was a supercontinent that existed during the late Paleozoic and early Mesozoic eras. It was formed by the collision of the North American and Eurasian plates.

Laurasia was eventually divided into North America, Europe, and Asia by the opening of the Atlantic Ocean.

Laurasia had a warm and humid climate during the late Paleozoic era. This was due to the fact that it was located near the equator.

Reptiles were the dominant animals in Laurasia during the late Paleozoic era. This was due to the fact that they were able to adapt to the warm and humid climate.

The Appalachian Mountains formed along the eastern edge of Laurasia during the late Paleozoic era. This was due to the collision of the North American and Eurasian plates.

The Tethys Ocean separated Laurasia from Gondwana during the late Paleozoic era. This ocean was eventually closed by the collision of the African and Eurasian plates.

Pangea was formed after the collision of Laurasia and Gondwana. This supercontinent existed during the late Paleozoic and early Mesozoic eras.

Pangea had a warm and humid climate during the late Paleozoic era. This was due to the fact that it was located near the equator.

Reptiles were the dominant animals in Pangea during the late Paleozoic era. This was due to the fact that they were able to adapt to the warm and humid climate.

The Appalachian Mountains formed along the eastern edge of Pangea during the late Paleozoic era. This was due to the collision of the North American and Eurasian plates.

The Tethys Ocean separated Pangea from Laurasia during the late Paleozoic era. This ocean was eventually closed by the collision of the African and Eurasian plates.

Laurasia was formed after the breakup of Pangea. This supercontinent existed during the Mesozoic and Cenozoic eras.

Laurasia had a temperate and rainy climate during the Mesozoic era. This was due to the fact that it was located in the mid-latitudes.

Dinosaurs were the dominant animals in Laurasia during the Mesozoic era. This was due to the fact that they were able to adapt to the temperate and rainy climate.

The Rocky Mountains formed along the western edge of Laurasia during the Mesozoic era. This was due to the collision of the North American and Pacific plates.