Perfect Promicroceras pyritosum ammonite fossil (21 mm) crinoid The piece of limestone matrix

The piece of limestone matrix measures 105 mm (4

The fossil measures 55 mm (2

The shell displays some beautiful multicoloured iridescence with flashes of red

It can be put back together to be revealed as a surprise or with the two parts displayed separately

Perfect Promicroceras pyritosum ammonite fossil (21 mm) crinoid The piece of limestone matrixA 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.