Green iridescent Caloceras display ammonite fossil 33mm

Green iridescent Caloceras display ammonite fossil 33mmA stunning example of an iridescent ammonite fossil of the species Caloceras johnstoni from North Somerset, UK. The matrix measures 120 mm (4. 7 inches) tall and contains an ammonite that measures 33 mm (1. 3 inches) 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 stand freely by itself for display. The ammonite is very well preserved and has been prepared out of

A stunning example of an iridescent ammonite fossil of the species Caloceras johnstoni from North Somerset, UK.

The matrix measures 120 mm (4.7 inches) tall and contains an ammonite that measures 33 mm (1.3 inches) 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 stand freely by itself for display.

The ammonite is very well preserved and has been prepared out of the rock to reveal the shell. The shell displays some beautiful multi-coloured iridescence with different colours that appear as the viewing angle changes. The green on this one is especially striking. There is also an unusual bivalve shellfish underneath the ammonite that encrusted it in life before fossilisation.

These fossils are highly sought after and very hard to find, especially complete like this. They are preserved in the same way as the famous Canadian "Ammolite" ammonites that are turned into valuable gemstones. The fossil weighs 225 grams.

Around 200 million years old (Hettangian, Early Jurassic), this fossil would make a wonderful addition to any collection.