Detailed pyrite crinoid fossil (48 mm) Pentacrinites pyrite The bivalve has taken the

The bivalve has taken the shape of the ammonite's whorls as it grew on it

gold and copper that appear as the viewing angle changes

The fossil weighs 185 grams

The ribs are usually worn away in this species

Detailed pyrite crinoid fossil (48 mm) Pentacrinites pyrite The bivalve has taken theA 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 48 mm (1. 9 inches) across and consists of several stems with highly detailed tentacle like attachment cirri running across the surface. It has an extremely high level of detail down to the smallest parts. It is preserved in iron pyrite, giving it a wonderful metallic colour and shine.