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Welsh mudstones reveal prehistoric ecosytem

Geologists working in Wales have discovered extremely well-preserved organisms in the Llanfawr Mudstones.

More than 20 species have turned up so far, and it’s almost certain that many more remain to be uncovered.

The fossils include sponges, priapulid worms and arthropods, and shed new light on how living things colonised the deep oceans. Among the most exciting are beautiful specimens of a type of animals known as solitary hydroids – the earliest known examples of the group.

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Story: Tom Marshall, Planet Earth Online | Photo: Planet Earth Online

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