Ammonite Fossil Block Polished Lower Lias Jurassic Coast Lyme Regis Dorset UK Genuine Cut Display Specimen with COA

Description Cut and Polished Ammonite Block Fossil This cut and polished ammonite block is a genuine Jurassic fossil specimen from the Lower Lias of Lyme Regis, Dorset, UK. Collected from the world-famous Jurassic Coast, this carefully chosen fossil block offers excellent natural history appeal, attractive display quality, and classic British fossil provenance. The photo shows the actual specimen you will receive, allowing you to view the real fossil detail, polish, natural colour, preservation, and overall character of the piece before purchase. For full sizing, please see the photo. This fossil includes a Certificate of Authenticity lifetime guarantee generic card, providing reassurance that the specimen is genuine and suitable for collectors, educators, fossil enthusiasts, and natural history displays. Ammonite Fossil Type Ammonites were extinct marine cephalopods, related to modern squid, cuttlefish, and nautilus. They lived in ancient seas and are among the most iconic fossils of the Jurassic Period. Their coiled shells were divided internally into chambers, which helped the living animal control buoyancy in the water. The visible spiral form, ribbing, chamber structure, and mineralised detail make ammonites highly popular with collectors. As a fossil block, this specimen may show one or more ammonite sections preserved within the surrounding matrix. Cutting and polishing reveals features that are often hidden inside the stone, including shell cross-sections, chamber patterns, mineral infill, and natural colour variation formed during fossilisation. This preparation style makes the fossil especially suitable for display, as it combines geological interest with decorative appeal. Lower Lias Geology The Lower Lias is part of the Early Jurassic marine sequence exposed along the Dorset coast. These rocks were formed when southern Britain lay beneath a warm, shallow sea rich in marine life. Fine muds, silts, limestones, and carbonate-rich sediments accumulated on the sea floor, burying shells and organic remains that later became fossilised over millions of years. Lower Lias fossils are particularly well known for ammonites, belemnites, bivalves, crinoids, fossil fish, and occasional marine reptile remains. Ammonites from these deposits are important in geology because many species evolved rapidly, making them useful for dating and comparing Jurassic rock layers. A polished ammonite block from the Lower Lias therefore represents both an attractive display item and a genuine piece of ancient marine history. Jurassic Coast, Lyme Regis, Dorset Lyme Regis is one of the most famous fossil localities in the world and forms part of the UNESCO World Heritage Jurassic Coast. This stretch of coastline has been central to British palaeontology for generations, producing ammonites, marine reptile fossils, fossil fish, shells, and many other important prehistoric remains. The cliffs and foreshore around Lyme Regis expose a remarkable sequence of Jurassic rocks, making the area internationally recognised for its geology and fossil record. Fossils from Lyme Regis are highly sought after because of their historic locality and strong connection to the early development of fossil collecting and palaeontology. A genuine ammonite block from this area has excellent collector appeal, especially for those interested in British fossils, Jurassic Coast specimens, polished ammonites, decorative natural history pieces, and classic Lower Lias material. Cut and Polished Display Specimen This ammonite block has been cut and polished to enhance the fossil detail and reveal the natural internal structure within the stone. The polished face may display chambered ammonite sections, mineralised shell material, natural patterns, and contrasting matrix textures. Each specimen is unique, shaped by the original marine environment, burial conditions, mineral replacement, geological pressure, and careful preparation. This fossil is ideal for a display cabinet, fossil collection, educational setting, natural history room, office display, or as a thoughtful gift for a fossil enthusiast. It is sold as the exact specimen shown in the photo, so the buyer can purchase with confidence knowing the pictured fossil is the one they will receive. With its Lower Lias age, Lyme Regis provenance, Jurassic Coast origin, polished preparation, and included Certificate of Authenticity lifetime guarantee generic card, this is a desirable genuine ammonite fossil block with strong visual and geological appeal.