A stunning and perfect example of an ammonite fossil of the species Caloceras johnstoni from North Somerset, UK.
The matrix measures 230 mm (9.05 inches) tall and the ammonite measures 113 mm (4.45 inches), which is very large for this species. 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 ammonite is well preserved and has been prepared out of the rock to reveal the shell, which has some very subtle iridescence with flashes of green and red appearing at certain angles and a general pearlescent sheen. The fossil weighs 1875 grams and is a large and impressive display fossil.
Around 200 million years old (Hettangian, Early Jurassic), this fossil would make a wonderful addition to any collection.