Iridescent Caloceras display ammonite with encrusting bivalves 25 A great example of the

A great example of the species and impressive in the flesh

Crinoid heads of this quality are rare

The fossil measures 24mm (0

which measures 82 mm (3

and the mottled brown and yellow colour is beautiful and unusual for this species

Iridescent Caloceras display ammonite with encrusting bivalves 25 A great example of theA stunning example of an iridescent ammonite fossil of the species Caloceras johnstoni from North Somerset, UK. The matrix measures 87 mm (3. 45 inches) tall and contains a large partial ammonite shell that measures 70 mm across. The shell sits in the original limestone matrix in which it was found that has been shaped and has a cut flat base to allow it to be displayed freely standing. The ammonite shell is very well preserved and has been prepared