Cleoniceras Ammonite Fossil – Genuine Cretaceous Specimen from Madagascar – Natural Prehistoric Shell – With Certificate of Authenticity

Description Offered for sale is a genuine Cleoniceras ammonite fossil, beautifully preserved from the Cretaceous Period, approximately 100 to 65 million years ago. This specimen was discovered in Madagascar, a globally recognised fossil locality known for its richly mineralised and exquisitely preserved ammonites. Geological and Fossil Details: Name: Ammonite Species: Cleoniceras Age: Cretaceous Period (~100–65 million years ago) Location Found: Madagascar Type: Extinct marine cephalopod Scale cube = 1cm – Please see photo for exact size Cleoniceras is a genus of ammonite known for its tight spiral form and fine ribbing along the shell. These marine animals were fast-swimming predators, related not to snails as often thought, but to modern squid, octopuses, and cuttlefish. Their beautiful, coiled shells helped control buoyancy, allowing them to move up and down through the ocean waters with ease. This particular specimen is a naturally fossilised shell, with stunning detail preserved through the process of mineralisation over millions of years. When polished, many Madagascan ammonites like Cleoniceras reveal rich, colourful patterns and calcite-filled chambers, turning ancient marine creatures into works of natural art. Scientific Importance: Ammonites like Cleoniceras are not just admired for their beauty—they are also critical index fossils, used by geologists and paleontologists to help date and correlate rock layers. Because ammonites evolved rapidly and were widespread, they serve as time markers that help scientists understand the sequence of events in Earth’s history. In studying these fossils, researchers gain insight into: Ocean chemistry and climate change Evolutionary biology of cephalopods Marine ecosystems of the Mesozoic Era Why Choose This Fossil? Each ammonite fossil is one-of-a-kind, with distinctive patterns, colouring, and chamber structure. Whether you’re an avid fossil collector, a student of paleontology, or someone looking for a meaningful and unique gift, this Cleoniceras specimen is a remarkable piece of natural history. Key Features: 100% genuine Cleoniceras ammonite fossil From the Cretaceous Period, approx. 100–65 million years old Discovered in Madagascar – a world-renowned fossil site Excellent preservation and visible coiled chamber structure Comes with a Certificate of Authenticity The exact specimen pictured is the one you will receive Scale cube = 1cm – see image for sizing reference Please note: Some fossils may be propped for photography Colours may vary slightly depending on lighting and screen settings Add the beauty and wonder of ancient marine life to your collection with this stunning Cleoniceras ammonite fossil—a true relic of the Cretaceous seas, perfect for collectors, educators, and natural history lovers.