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Published online 30 January 2002 | Nature | doi:10.1038/news020128-5

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Jellies roll back time

Petrified jellyfish find wows palaeontologists.

A flotilla of giant jellyfish marooned on a beach 500 million years ago has been unearthed in what is now central Wisconsin. This largest-ever find of the biggest-ever fossil jellyfish provides insights into life on Earth before animals came to land.

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