Cleoniceras Ammonite, polished fossil from Madagascar. Ammonite + stand = 29cm This gorgeous ammonite measures 13,5 cm at its widest point and has been carefully hand-polished to reveal its rich golden brown calcite replacements and impressive fern-like suture patterns. These replacements occurred over a very long period of fossilisation, wherein water dissolved the original hard parts of the ammonite shell and replaced it with mineral matter. This gorgeous, richly coloured fossil is of a very high grade and displays a smooth, glistening shell which makes it perfect for a collector or as a gift for a fossil lover. Sourced from the jungles of Mahajanga on the North West Coast of Madagascar, and dating from the Cretaceous Period at 120 million years old, this piece is a stunning historical item. The piece comes complete with custom display stand.