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 330 mm (13 inches) wide and the fossil ammonite measures 76 mm (3 inches) across, which is a good size for this species. The ammonite is very well preserved and has been carefully and aesthetically prepared within the rock matrix to reveal the whole shell on both sides, including the aperture (shell opening). Many hours of work have gone into the preparation of this fossil. The ribs are very finely defined, and the colour is beautiful: a mix of yellows, browns, and greys. Because the rock has been removed from both sides of the shell and the crystalline structure of the ammonite, when a light is shone behind it, it glows a fiery orange colour. This makes a great way to display these fossils and preparing them like this is hard to achieve. The fossil weighs 4185 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 and make wonderful interior design pieces.
Around 196 million years old (Sinemurian, Early Jurassic), this fossil would make a wonderful addition to any collection.