A stunning example of a calcite ammonite fossil of the species Asteroceras obtusum from the world-famous Jurassic Coast beach of Lyme Regis, Dorset UK.
The piece of limestone matrix measures 290 mm (11.45 inches) tall and the fossil ammonite measures 68 mm (2.7 inches) across, which is a good size for this species. The ammonite is well preserved and has been prepared out of the rock to reveal the whole shell including the aperture (shell opening). The ribs are very finely defined, and the colour is beautiful: a mix of yellows, browns and greys. The matrix is generous on this one and still shows the original curved shape of the flatstone concretion in which it was found, adding to the aesthetic quality. A great example of the species and impressive in the flesh. The fossil weighs 4200 grams and has a cut flat base to allow it to stand freely on its own for display. These are very sought after ammonites from this world-famous location, especially large display pieces like this example.
Around 196 million years old (Sinemurian, Early Jurassic), this fossil would make a wonderful addition to any collection.