An artistic reconstruction shows a group of Burgessomedusa phasmiformis swimming in the Cambrian sea. (Illustration by Christian McCall) (CN) — Researchers in Canada have discovered the oldest ...

Burgessomedusa unambiguously shows that large, swimming jellyfish with a typical saucer or bell-shaped body had already evolved more than 500 million years ago. Burgessomedusa fossils are ...

The oldest examples of swimming jellyfish, which lived in Earth’s oceans 505 million years ago, have been discovered high within the Canadian Rockies. Researchers found 182 fossils encased within the ...

Researchers have uncovered a previously unknown species of ancient jellyfish that lived more than 500 million years ago. The now-extinct creature is the oldest swimming jellyfish discovered to date ...

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The world’s oldest jellyfish fossil has been found — believed to be 505 million years old. A study published in the journal Proceedings of the Royal Society B Biological Sciences noted that the fossil ...

The Canadian Rocky Mountains offer more than scenic views: The mountains have been hiding fossils of an ancient jellyfish species. Researchers analyzed 182 fossils that were found in the middle ...

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Royal Ontario Museum (ROM) announces the oldest swimming jellyfish in the fossil record with the newly named Burgessomedusa phasmiformis. These findings are announced in the journal Proceedings of the ...