Large copper and gold iridescent Caloceras display ammonite iridescent making it an ideal drawer

making it an ideal drawer fossil

There is a predation bite in the outer whorl where a Jurassic predator bit into the ammonite and killed it

It is an unusual example as it has a bivalve shellfish resembling an oyster that attached itself to the shell either in life or after the ammonite died and the shell came to rest on the seafloor

These ammonites are becoming much harder to find these days due to lack of erosion of the right layers of rock

and the mix of yellow and brown colours is beautiful

Large copper and gold iridescent Caloceras display ammonite iridescent making it an ideal drawerA stunning and perfect example of an iridescent ammonite fossil of the species Caloceras johnstoni from North Somerset, UK. The matrix measures 210 mm (8. 25 inches) across and contains half an ammonite shell that measures 90 mm (3. 6 inches), which is large for this species. The shell sits in the original limestone matrix in which it was found which has been shaped and has a cut flat base to allow it to stand freely by itself for display. The