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Plants evolved complexity in two bursts -- with a 250-million-year hiatus

EurekAlert
 2021-09-16

Cover picture for the articleA Stanford-led study reveals that rather than evolving gradually over hundreds of millions of years, land plants underwent major diversification in two dramatic bursts, 250 million years apart. The first occurred early in plant history, giving rise to the development of seeds, and the second took place during the diversification of...

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