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 55mm (2.2 inches) across with matrix, which is very large for this species, and is very well preserved with great detail in the ribbing. It has a beautiful pyritic metallic shine. Many of the much sought-after spines are preserved on the outer whorl.
This species is usually much smaller than this, and large examples as high quality as this one are hard to find these days. They are very popular and sought-after ammonites.
Around 196 million years old, this fossil would make a wonderful addition to any collection.