A stunning example of an iridescent multi-ammonite fossil containing the species Psiloceras planorbis from North Somerset, UK.
The piece of limestone matrix measures 155 mm (6.1 inches) tall and contains multiple ammonites of various sizes. The ammonites are all very well preserved and have been prepared out of the rock to reveal the shells, which display some stunning iridescence with colours that change depending on the angle that the fossil is viewed at. There is a nice mix of reds and greens appearing at certain angles. These colours change their hues between natural and artificial light (see photos). The fossil weighs 1290 grams and has a cut-flat base to allow it to stand freely for display. These beautiful iridescent ammonite display pieces make great pieces for natural interior design.
Around 200 million years old (Hettangian, Early Jurassic), this fossil would make a wonderful addition to any collection.