Cretaceous ammonite fossil pair – polished halves from madagascar – genuine marine cephalopod with certificate

Description This listing showcases a beautiful pair of genuine Cretaceous Ammonite fossils, discovered in the fossil-rich deposits of Madagascar and carefully sliced and polished to reveal the breathtaking internal chamber structure of these ancient marine creatures. Ammonites are among the most iconic and easily recognised fossils, known for their tightly coiled spiral shells that resemble the shape of a modern snail—but these fascinating creatures are in fact more closely related to modern squid, octopuses, and cuttlefish (coleoids). They thrived in the world’s oceans from about 240 to 65 million years ago, with the Cretaceous Period marking their final flourishing before their extinction alongside the dinosaurs. The internal chambers seen in these sliced ammonite halves once served as buoyancy aids, allowing the animal to regulate its position in the water column. The polished interior often reveals a kaleidoscope of natural mineralisation, with calcite, aragonite, and other minerals having slowly replaced the original organic materials over millions of years. These paired specimens are ideal for display, educational use, or as a captivating collector’s item. Their natural symmetry and intricate inner details make them perfect gifts for fossil lovers, educators, or anyone interested in the natural history of life on Earth. Item Details: Name: Ammonite (unspecified genus) Specimen: Sliced and Polished Ammonite Pair Age: Cretaceous Period Location: Madagascar Scale Reference: Scale cube = 1cm. Please refer to the photo for full sizing. Certificate of Authenticity: Included ACTUAL AS SEEN: You will receive the exact ammonite pair shown in the photo. Each fossil is hand-selected and professionally photographed. Please Note: Some fossils may be gently propped for photography. Colours may vary depending on lighting and device screens. Measurements are accurate to the best extent possible but minor variation may occur due to natural irregularities. Once sold, this listing will be updated with a new item and fresh photos. 100% Genuine Fossils – Professionally Selected – Certificate of Authenticity Included