'The BBC has had the fossil identified by the British Geological Survey (BGS) which confirmed it is a larger part of a crinoid. Crinoids are marine animals that first appeared in the Cambrian period, more than 500 million years ago, making it one of the oldest complex animals on the planet, and versions of it still exist today. It has a flexible stem, which is attached to the sea floor, with branching arms arranged around the main body of the animal at the top of the stem - although it is an ani