Perfect Promicroceras pyritosum ammonite fossil (21 mm) crinoid The fossil measures 55 mm

The fossil measures 55 mm (2

These fossils are highly sought after and hard to find

It is preserved in calcite and has been coated in a reversible (soluble) lacquer for protection

which likely happened when the rock fell from the cliffs to the beach

The piece of limestone matrix measures 105 mm (4

Perfect Promicroceras pyritosum ammonite fossil (21 mm) crinoid The fossil measures 55 mmA highly pyritised ammonite fossil of the species Promicroceras pyritosum from the world famous Jurassic Coast beach of Charmouth, Dorset UK. The fossil measures 20. 5 mm (0. 8 inches) across, which is a good size for this species. The ammonite is very well preserved on both sides. The ribs are very finely defined and the pyritic colour and shine is beautiful. A great example of the species and incredible in the flesh. A really impressive specimen.