Devils Toenail's 'Gryphaea'

Also known as ‘devil’s toenails’, they are an extinct species of oyster commonly found in England. It is said in folklore they were created when the devil clipped his toenails, due to their curved, ridged appearance being similar to a nail. They lived in large colonies in warm shallow waters and sat on the sea-floor with their shells half buried in the mud. 5-7cm approx.

Period: Jurassic
Age: approx. 200 million years
Origin: England

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