A stunning example of a highly pyritised ammonite fossil of the species Crucilobiceras densinodulum from the world-famous Jurassic Coast beach of Charmouth, Dorset UK.
The fossil measures 42 mm (1.65 inches) across with matrix, which is a good size for this species. The matrix around the exposed shell is the crushed outer whorl of the ammonite, meaning the whole fossil is made up of the shell. It is very well preserved with great detail in the ribbing. It has a beautiful pyritic metallic shine. The centre of the ammonite is missing.
These are very popular and sought-after ammonites.
Around 196 million years old, this fossil would make a wonderful addition to any collection.