Mark Graham, who was our fossil preparator until late 2021, uses a microscope to help him see to remove tiny grains of rock from a crinoid fossil found in a Jurassic seabed in the ... ‘The preparator ...

The sea-urchin Tylocidaris clavigera has highly characteristic club-like spines. This specimen is 80-83 million years old and originates from the Upper Cretaceous Chalk in southern England.