Calcite Promicroceras ammonite display piece (26 mm) featured There is also a small

There is also a small Promicroceras ammonite in the matrix

The piece of limestone matrix measures 60 mm (2

25 inches)

The vertebra is matrix free and measures 31 mm (1

The fossil weighs 50 grams and is preserved as a thin piece of shale

Calcite Promicroceras ammonite display piece (26 mm) featured There is also a smallA stunning example of an ammonite fossil of the species Promicroceras planicosta from the world famous Jurassic Coast beach of Lyme Regis, Dorset UK. The piece of limestone matrix measures 155 mm (6. 1 inches) across and the fossil ammonite measures 26 mm (1 inch). The ammonite is very well preserved and has been prepared out of the rock to reveal the shell. The ribs are finely defined, and the mixed grey and mottled brown colour is beautiful. A great