Description
Gryphaea dilatata Fossil Giant Oyster
Formation: Kimmeridge Clay
Age: Jurassic Period (Approx. 157–145 million years ago)
Location: Osmington Mills, Dorset, UK
This listing offers a stunning Gryphaea dilatata, a fossilized giant oyster from the Jurassic period, renowned for its unique “devil’s toenail” appearance. Discovered on December 4, 2024, by our expert team members Alister and Alison, this fossil was unearthed from the Kimmeridge Clay at Osmington Mills, Dorset. Carefully cleaned, prepped, and treated by Alison, this exceptional specimen is both visually striking and scientifically significant.
Species Information:
Gryphaea dilatata, commonly known as the “devil’s toenail,” was a genus of extinct oysters that thrived in Jurassic seas. These bivalves had a thick, curved shell, with the lower valve typically larger and more inflated than the upper valve. They inhabited shallow marine environments, filtering nutrients from the water.
Fossils of Gryphaea are highly prized for their distinct morphology and their role in reconstructing ancient marine ecosystems. This specimen, being larger than average, showcases the robustness of the species and offers a tangible connection to life over 150 million years ago.
Product Details:
- Authenticity Guaranteed: 100% genuine fossil with a Certificate of Authenticity included.
- Exact Specimen: The fossil in the photos is the exact piece you will receive.
- Size: Refer to the scale cube (1 cm) and photos for precise dimensions.
- Discovery and Preparation: Found on December 4, 2024, by Alister and Alison, and expertly prepared by Alison to highlight its natural features.
- Formation and Location: Sourced from the Kimmeridge Clay at Osmington Mills, Dorset, UK.
This Gryphaea dilatata fossil is an excellent addition to any collection, ideal for display, study, or teaching purposes. Its historical importance, unique appearance, and scientific value make it a standout piece for collectors, educators, and paleontology enthusiasts alike.
Shipping & Handling:
Your fossil will be securely packaged to ensure safe delivery. International shipping with tracking is available for a smooth and worry-free purchasing experience.
Don’t miss the opportunity to own this genuine and beautifully preserved Gryphaea dilatata fossil giant oyster. Add this extraordinary piece of Earth’s Jurassic history to your collection today!






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