Subtly green iridescent Caloceras display ammonite crinoid which display some beautiful pearlescence

which display some beautiful pearlescence with different colours appearing as the angle the fossil is viewed from changes

A stunning example of a calcite ammonite fossil of the species Promicroceras planicosta from the world-famous Jurassic Coast beach of Lyme Regis

The fossil measures 80 mm (3

These crinoid heads are rare and not often offered for sale

Subtly green iridescent Caloceras display ammonite crinoid which display some beautiful pearlescenceA stunning example of an iridescent ammonite fossil of the species Caloceras johnstoni from North Somerset, UK. The matrix measures 123 mm (4. 95 inches) across and contains an ammonite that measures 81 mm (3. 2 inches) across, which is large for this species. 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 stand freely by itself for display. The ammonite is very well