A stunning example of a highly pyritised ammonite fossil of the species Eoderoceras (Eteoderoceras) armatum from the world-famous Jurassic Coast beach of Charmouth, Dorset UK.
The fossil measures 95 mm (3.75 inches) across with matrix, which is large for this species. It is beautifully preserved on both sides. The suture lines are clearly visible and very striking and the detail in the ribs is very good. This one is unusual as it has many of the much sought-after spines still preserved, which is uncommon as these are often lost during preservation or through erosion. It has a lovely pyritic golden colour and shine. A number of cracks in the shell have been stabilised. These ammonites are very hard to find these days due to lack of erosion in the correct layers of the cliffs, and they are getting very sought after. This one is a chunky and heavy ammonite, weighing 235 grams.
Around 196 million years old, this fossil would make a wonderful addition to any collection.