British Hybodont Shark Fossil Tooth – Astracanthus magnus – Jurassic Bathonian – Ardley Quarry, Oxfordshire – Genuine Tooth with COA

Description This listing features a rare British Hybodont shark fossil tooth from the species Astracanthus magnus, sourced from the White Limestone Formation at Ardley Quarry, near Ardley, Oxfordshire, UK. This exceptional specimen dates to the Bathonian stage of the Middle Jurassic, approximately 168–166 million years ago. Fossil Type: Shark Tooth Species: Astracanthus magnus (extinct Hybodont shark) Geological Formation: White Limestone Formation Geological Stage: Bathonian, Middle Jurassic Location: Ardley Quarry, Ardley, Oxfordshire, England Depositional Environment: Warm shallow marine lagoonal setting Size Reference: Scale Rule Squares / Cube = 1cm (see photo for exact sizing) Authenticity: 100% Genuine Specimen with Certificate of Authenticity Palaeontology & Geological Context: Astracanthus magnus was a species of Hybodont shark, a now-extinct lineage of sharks that thrived in marine and freshwater environments from the Devonian to the end of the Cretaceous. Their teeth, such as this one, are often found isolated but are highly diagnostic. Morphology Features: Large, robust, multicusped crown with central cusp and symmetrical lateral cusplets; characteristic of shell-crushing feeding adaptations. Order: Hybodontiformes Family: Hybodontidae Biozone (if assigned): Not formally designated Identified by: Commonly attributed through comparative morphology in UK collections; species described historically through numerous finds in Jurassic British limestones. Collector’s Value: Fossils of Astracanthus magnus are rare and sought-after due to their scientific significance and limited occurrence. This specimen was hand-selected for its excellent preservation and identifiable features, making it ideal for educational display, scientific study, or collection. What You Receive: 1 x Astracanthus magnus Fossil Tooth (exact specimen shown) Certificate of Authenticity Secure protective packaging   Why Buy From Us? 100% genuine legally sourced fossils Individually inspected and verified Trusted by collectors, teachers, and institutions worldwide All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.