Gondwana, the supercontinent that formed during the Cambrian Period, included present-day Australia, Antarctica, India, Africa, and South America. Before the beginning of the Cambrian, the supercontinent Rodinia split in half, resulting in the creation of the Pacific Ocean west of what would become North America. Other notable Cambrian landmasses included Laurentia (made up of present-day North America and Greenland), Baltica (made up of present-day western Europe and Scandinavia), and Siberia.
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