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 150 mm (5.92 inches) tall and the fossil ammonite measures 37 mm (1.47 inches) across. The ammonite is 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: deep yellow in the gas chambers and light brown and grey in the body chamber. The suture lines are very well defined on this one. A great example of a popular species and impressive in the flesh. The fossil weighs 950 grams and 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.