Iridescent Psiloceras multi-ammonite fossil display piece calcite The shell sits in the

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 fossil weighs 50 grams and is preserved as a thin piece of shale

The matrix measures 95 mm (3

The ammonite is well preserved with strong ribbing and suture lines and is mostly clean on both sides

The ammonite is well preserved with strong ribbing and suture lines and is clean on both sides (which is hard to find with this species)

Iridescent Psiloceras multi-ammonite fossil display piece calcite The shell sits in theA stunning example of an iridescent ammonite fossil of the species Psiloceras planorbis from North Somerset, UK. The piece of limestone matrix measures 146 mm (5. 8 inches) across and contains two ammonites, which measure 55 mm and 38 mm. The ammonites are very well preserved and have been prepared out of the rock to reveal the shells, which display some subtle iridescent colours that change depending on the angle that the fossil is viewed at with a