This fossil is from the Kimmeredgian Clay of the Jurassic Coast of Britain. This specimen was rescued from the bottom of the sea where it would have otherwise been lost forever due to oceanic erosion. The bone pictured above is the last remains of this particular ichthyosaur which would otherwise have been lost from the palaeontological record. As a result of being sunken treasure, this specimen has undergone some erosion before it was dredged back up to the surface which allows you to see the unique impact of nature on this fossil. This particular fossil is a scapula; the shoulder blade of this ichthyosaur. As you can see this scapula has been professionally prepared to show exquisite bone detail which has survived despite the fossil being exposed to oceanic erosion.