Description Discover a truly exceptional and rare fossil specimen with this 10″ Gleviceras victorix ammonite from the Armatum Bed of the Sinemurian Stage, Early Jurassic Period, collected near Radstock, Somerset, United Kingdom. This beautifully preserved fossil is a genuine and certified example of Gleviceras victorix, an extinct ammonite species known for its strong ribbing and involute shell structure. Belonging to the Family Oxynoticeratidae, Superfamily Psiloceratoidea, and Order Ammonitida, this specimen displays striking morphological features including: Tightly coiled involute shell with only the outermost whorls visible Dense ribbing along the flanks, characteristic of the species Excellent preservation with natural suture patterns and calcitic detail Geological Context: Formation: Lower Lias Bed: Armatum Bed (a fossil-rich horizon within the lower Sinemurian sequence) Biozone: Associated with the Oxynoticeras oxynotum Zone Age: Approximately 196-190 million years old Depositional Environment: Shallow marine conditions; ammonites like Gleviceras lived in open seas and were free-swimming nektonic predators. Notable Information: The Gleviceras genus is frequently used in regional biostratigraphy to define Sinemurian ammonite zones. The Armatum Bed is well known for yielding high-quality ammonite fossils with distinctive features. This museum-grade fossil is photographed to show the exact specimen you will receive. The image includes a 1cm square scale rule for accurate sizing reference. Authenticity Guaranteed: All of our fossils are 100% genuine natural specimens and come with a Certificate of Authenticity. Carefully chosen and professionally prepared, this ammonite is ideal for collectors, educators, and display enthusiasts. Please examine the photos for full condition and size details. This is a rare opportunity to own a stunning piece of Jurassic paleontological history from one of the UK’s most iconic fossil localities.
