RARE: Astracanthus magnus Hybodont Shark Tooth Fossil – Oxford Clay – Jurassic – Peterborough, UK
$38.56
$75.96
Description RARE Astracanthus magnus Hybodont Shark Tooth – Oxford Clay – Middle Jurassic – Peterborough, UK This listing features an authentic fossil tooth from the extinct Hybodontiform shark species Astracanthus magnus, collected from the marine Oxford Clay Formation near Peterborough, United Kingdom. This tooth dates to the Jurassic Period, more specifically the Callovian Stage of the Middle Jurassic, approximately 166 to 163 million years ago. Fossil Type: Shark Tooth (likely dorsal fin spine base or oral tooth fragment) Species: Astracanthus magnus Order: Hybodontiformes Family: Hybodontidae Class: Chondrichthyes (Cartilaginous Fishes) Geological Stage: Callovian (Middle Jurassic) Formation: Oxford Clay Formation Location: Peterborough, Cambridgeshire, England, UK Depositional Environment: Shallow marine shelf; oxygen-poor, soft clay seabed with rich vertebrate assemblages Morphology Features: The teeth of Astracanthus magnus are typically characterised by their broad, ornamented crown with a central cusp and reduced lateral cusplets, suited for grasping and crushing prey such as soft-bodied invertebrates and small vertebrates. Some specimens may also include base structures associated with dermal denticles or fin spines. Notable: Astracanthus magnus is a rare taxon within the Oxford Clay fossil record, with distinctive dental and dermal features. The Oxford Clay Formation is world-renowned for its preservation of marine reptiles, cephalopods, and diverse fish assemblages, making this shark tooth a highly desirable specimen. Condition: Well-preserved and stabilised. This is the actual specimen you will receive. Scale Reference: Scale Rule Squares / Cube = 1cm. Please refer to the photo for full sizing. Important Note: All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity. A unique addition to any collection of British Jurassic fossils, Oxford Clay marine vertebrates, or extinct Hybodont shark specimens.
