This Madagascan Ammonite (225 Million Years Old) has been mounted in a museum quality bell jar by a member of our in-house team. All of our display cases use museum grade 99% UV blocking conservation glass to preserve our specimens, and are supported by a wooden base. Dimensions: 160mm x 100mm All of our specimens are responsibly sourced from experts around the world and handcrafted to order by one of our Curated team members in our Cheshire studio. The picture shown is an example of the quality that you can expect to receive. Please be aware that, as our products are 100% authentic and organic, they are subject to variation.