A stunning example of a crinoid fossil of the species Pentacrinites fossilis from the world-famous Jurassic Coast beach of Charmouth, Dorset UK.
The fossil measures 61 mm (2.4 inches) across. The fossil consists of multiple stem sections on one side and further stems with highly detailed attachment cirri still preserved in situ and in 3D on the other. The cirri were used by the animal to attach itself to other crinoids in large colonies and to cling to substrate such as floating driftwood. It is preserved in calcite with no pyrite and shows a very high level of detail down to the smallest level, which is uncommon on these fossils.
Around 196 million years old, this fossil would make a wonderful addition to any collection.
Crinoids are echinoderms closely related to starfish and sea urchins, and have been around for many hundreds of millions of years. They still live today in the deep seas around the world.