A stunning example of a highly pyritised multi-ammonite fossil containing the species Crucilobiceras densinodulum from the world famous Jurassic Coast beach of Charmouth, Dorset UK.
The fossil measures 75 mm (2.95 inches) across with matrix, which is large for this fossil type. The pyrite matrix contains several small ammonite shells which accumulated together on the seafloor in the Early Jurassic. Each one of these fossils is natural and completely unique; no two are alike.
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.