Love child of slug and hedgehog: fossils may shed light on early mollusc ancestors

Rare specimens found in China from 514m years ago thought to be remains of proto-mollusc

From colourful, enigmatic octopuses, to oysters with their iridescent pearls, molluscs today are as beautiful as they are diverse. But it seems their ancient relatives may have resembled the love child of a slug and a hedgehog.

Soft-bodied creatures are a rarity in the fossil record as their tissues decay rapidly after death. However, researchers say they have found a rare exception in the eastern Yunnan province, in south-western China, in fossils dating to about 514m years ago.