RARE PLATYPLEUROCERAS Ammonite Fossil Upper Lias Jurassic Whitby Yorkshire UK Genuine Specimen

Description This rare Platypuleuroceras ammonite fossil was discovered in the world-renowned fossil locality of Whitby, North Yorkshire, UK. Dating from the Upper Lias (Lower Jurassic), approximately 183 to 174 million years ago, this fossil represents a well-preserved example of the extinct marine cephalopods that thrived in the ancient Jurassic seas. Platypuleuroceras is known for its involute shell structure with a compressed, disc-shaped form and relatively smooth flanks, sometimes exhibiting fine ribbing. These ammonites are members of the Hildoceratidae family, a group notable for their elegant and varied shell morphology and ecological significance during the Early Jurassic. This particular specimen comes from the Whitby Mudstone Formation, which is famous for preserving high-quality marine fossils. The depositional environment was a deep marine basin with anoxic bottom conditions, aiding exceptional fossil preservation. The photo shows the exact fossil you will receive. Scale rule squares/cube = 1cm for accurate sizing. This is a carefully selected specimen ideal for collectors, educational displays, or as a unique gift for fossil enthusiasts. Scientific & Geological Information: Genus: Platypuleuroceras Class: Cephalopoda Order: Ammonitida Family: Hildoceratidae Superfamily: Hildoceratoidea Geological Stage: Upper Lias (Toarcian), Lower Jurassic Age: Approx. 183–174 million years Formation: Whitby Mudstone Formation Location: Whitby, North Yorkshire, UK Depositional Environment: Deep marine, low oxygen basin Morphology Features: Involute, compressed shell, discoidal form with smooth or faintly ribbed flanks Why This Specimen Stands Out: Rare ammonite species from a classic UK locality Beautiful shell form with classic Jurassic preservation Authentic Whitby fossil with excellent detail Supplied with a Certificate of Authenticity Shipping & Packaging: Expertly packaged for safe delivery Tracked and insured worldwide shipping This Platypuleuroceras fossil makes a fine addition to any fossil collection and serves as a striking reminder of life in the Jurassic seas. All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.