A stunning example of an iridescent ammonite fossil of the species Psiloceras planorbis from North Somerset, UK.
The piece of limestone matrix measures 250 mm (9.85 inches) wide and the ammonite measures 58 mm, making this a large display fossil. The ammonite is perfectly preserved and has been prepared out of the rock to reveal the shell, which displays some nice iridescent colours that change depending on the angle that the fossil is viewed at, with some particularly stunning fiery red and orange hues on the outer whorl at certain viewing angles. There are also some further pieces of iridescent ammonite shell in the matrix and an uncommon bivalve shell that is immaculately preserved with the details in the growth lines well exposed. The fossil weighs 1675 grams and has a cut flat base and custom plaster wedge on the back to allow it to stand freely for display. A very impressive display fossil.
Around 200 million years old (Hettangian, Early Jurassic), this fossil would make a wonderful addition to any collection.