A stunning and large example of a highly pyritised multi-ammonite fossil of the species Eoderoceras (Eteoderoceras) armatum from the world-famous Jurassic Coast beach of Charmouth, Dorset UK.
The fossil measures 31 mm (1.22 inch) across. There are around 10 ammonites within the matrix, which is a lot for this type of fossil. The ammonites are incredibly well preserved and have a wonderful golden colour and shine. These beautiful fossils are getting much harder to find due to a lack of erosion in the correct rock layers. Multi-ammonite assemblages containing this species are uncommon and rarely found in this condition.
These multi-ammonite assemblages (or 'death beds') occur when lots of shells came together on the seafloor before being fossilised together, often collecting around an obstacle in the mud like a piece of wood or larger shell. They are a beautiful snapshot of life (and death) on the seafloor almost 200 million years ago.
Around 196 million years old, this fossil would make a wonderful addition to any collection.