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How did Gondwana contribute to the formation of Pangea?

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Permian paleogeography — Pangea Distribution of landmasses, mountainous regions, shallow seas, and deep ocean basins near the end of the Permian Period. Included in the paleogeographic reconstruction are the locations of the interval's subduction zones.

Gondwana was a massive paleocontinent that played a critical role in the final assembly of Pangea. By the beginning of the Permian Period (approximately 299 million years ago), the northwestern coastline of Gondwana collided with and joined the southern margin of [Euramerica]—a landmass already formed by the union of North America and Europe.1

This collision was a pivotal step in the formation of the supercontinent. Following this merger, the subsequent fusion of the Siberian craton to this combined landmass completed the assembly of Pangea. While Gondwana had been independently assembled through earlier continental collisions during the Late Precambrian, its integration into the larger Pangean structure effectively unified nearly all of Earth's major landmasses into a single supercontinent.12