A highly pyritised multi-ammonite fossil of the species Crucilobiceras densinodulum from the world-famous Jurassic Coast beach of Charmouth, Dorset UK.
The fossil measures 50 mm (1.95 inches) across. There are loads of beautiful ammonites (at least 20) in the matrix which are well preserved. There are lots of shells in the matrix, more than is usual for a fossil of this size. The detail in the fossils is great, they are well defined, and the golden colour is beautiful. These fossils are becoming hard to find due to a lack of erosion of the correct layers.
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.