A stunning example of an ammonite fossil of the species Psiloceras planorbis from North Somerset, UK.
The piece of limestone matrix measures 145 mm (5.7 inches) across and contains three fossil ammonites, the largest of which measures 66 mm (2.6 inches) across, which is a good size for this species. The matrix is original and has been shaped for display. The ammonites are well preserved and have been prepared out of the rock to reveal the shells, which display some stunning iridescent colours with rainbow flashes when the angle the fossil is viewed from changes. The colours on this example are particularly bright and saturated for this species, with reds and greens dominating.
The fossil weighs 358 grams. These ammonites make wonderful display items and are real conversation starters. This is as good as this species gets!
Around 200 million years old (Hettangian, Early Jurassic), this fossil would make a wonderful addition to any collection.