A stunning example of an ammonite fossil of the species Promicroceras planicosta from the world-famous Jurassic Coast beach of Lyme Regis, Dorset UK.
The piece of limestone matrix measures 83 mm (3.3 inches) tall and the fossil ammonite measures 35 mm (1.38 inches), which is very large for this species and about as big as they get. The ammonite is very well preserved and has been prepared out of the rock to reveal the whole shell, which is missing part of the outer whorl. The ribs are very finely defined, and the pale yellow, brown, and grey colour is beautiful.
A great example of the species and impressive in the flesh. The fossil weighs 374 grams and has a cut flat base to allow it to stand freely for display.
Around 196 million years old (Sinemurian, Early Jurassic), this fossil would make a wonderful addition to any collection.