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Still Waters

'Living fossil' thought extinct for 273 million years found thriving on ocean floor

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Still Waters

A symbiotic relationship between two marine lifeforms has just been discovered thriving at the bottom of the ocean, after disappearing from the fossil record for hundreds of millions of years.

Scientists have found non-skeletal corals growing from the stalks of marine animals known as crinoids, or sea lilies, on the floor of the Pacific Ocean, off the coasts of Honshu and Shikoku in Japan.

"These specimens represent the first detailed records and examinations of a recent syn vivo association of a crinoid (host) and a hexacoral (epibiont)," the researchers wrote in their paper, "and therefore analyses of these associations can shed new light on our understanding of these common Paleozoic associations."

https://www.sciencealert.com/living-fossil-thought-extinct-for-273-million-years-found-thriving-on-the-ocean-floor

https://www.sciencedirect.com/science/article/pii/S0031018221002042?

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Earl.Of.Trumps

Tres interesting stuff here. Another species found to not be extinct after all. and it is an ancient one, 273 million years. yowzers.

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