A stunning example of an ammonite fossil of the species Xipheroceras planicosta from the world-famous Jurassic Coast beach of Lyme Regis, Dorset UK.
The fossil ammonite measures 27 mm (1.06 inches) across and sits in a piece of limestone matrix that measures 155 mm (6.1 inches) at its widest point. The ammonite is very well preserved and has been prepared out of the rock to reveal the whole shell. The ribs are very finely defined, and the colour is beautiful: a mix of yellow, mottled brown, and grey. This one is an unusual example of this species as it has much narrower whorls than normal, adding to its interest. A great example of the species and impressive in the flesh. The fossil weighs 560 grams and has a cut flat base to allow it to stand freely on its own for display.
Around 196 million years old (Sinemurian, Early Jurassic), this fossil would make a wonderful addition to any collection.