The Remnants of a Lost ‘Supercontinent’ Just Rewrote the History of Life on Earth
A team discovered that Gondwana, an ancient landmass that formed more than 500 million years ago, was in fact large enough to be deemed a supercontinent, a finding that sheds light on the “explosion” of ancient Cambrian life.
Scientists have identified submerged remnants of a lost supercontinent called Gondwana, which played a crucial role in the Cambrian explosion - a rapid proliferation of complex life more than 500 million years ago. A study published in Science Advances reveals that Gondwana accounted for about 80% of Earth's landmass between 550 and 500 million years ago, confirming its status as a supercontinent.
This discovery sheds new light on the connection between deep-Earth processes and the most significant expansion of life in Earth's history. The formation of this colossal realm helped set the stage for the Cambrian explosion, where almost all major animal families first emerged, establishing the foundation for the diverse species that inhabit our planet today.
Scientists used advanced techniques and a database of thousands of magmatic rocks to reconstruct the past contours of Gondwana, revealing that the ancient landmass was broken apart and dispersed across the globe by tectonic activity. The discovery of these ancient Gondwanan remains was accidental, but the ongoing research by the team is expected to yield more surprising insights in the future.
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