Half a billion-year-old spiny slug reveals the origins of molluscs
A team of researchers including scientists from the University of Oxford and the University of Bristol have made an astonishing discovery of a new species of mollusc that lived 500 million years ago. The new fossil, called Shishania aculeata*, reveals that the most primitive molluscs were flat, shell-less slugs covered in a protective spiny armour. The findings have been published today in the journal Science.







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