Description
RARE: 21″ Giant Proplanulites laevigatus M Fossil Ammonite – Kellaways Rock, Lower Callovian, Jurassic – Semington By-Pass, UK
📜 From the Prestigious Alice Purnell Collection! 📜
✅ 100% Genuine Specimen – Comes with a Certificate of Authenticity (COA)
📏 Scale Rule / Cube = 1cm (Full sizing details in photos)
📸 You will receive the exact fossil shown in the images
⭐ Fossil Overview:
This is a RARE and exceptionally well-preserved 21″ Giant Proplanulites laevigatus M Fossil Ammonite, dating back to the Lower Callovian Stage of the Middle Jurassic Period (~165 million years ago). It was discovered in Semington By-Pass, United Kingdom, a site well known for its marine fossils embedded in the Kellaways Rock Formation.
Proplanulites laevigatus is a striking ammonite species distinguished by its smooth, rounded shell and intricate suture patterns. These prehistoric marine mollusks thrived in the warm Jurassic seas, and their fossilized remains serve as important indicators of ancient marine ecosystems.
This fossil originates from the Alice Purnell Collection, one of the largest and most renowned fossil collections in the world. Fossils from this collection are highly collectible and hold significant paleontological value.
🦖 Geological & Scientific Details:
- Species: Proplanulites laevigatus
- Group: Ammonoidea (Cephalopoda)
- Age: Lower Callovian, Middle Jurassic (~165 Million Years Ago)
- Location: Semington By-Pass, United Kingdom
- Formation: Kellaways Rock
- Fossil Features: Large, rounded ammonite with fine suture patterns
- Preservation: Exceptional condition with outstanding structural integrity
Fossilized ammonites like this provide valuable insight into prehistoric marine environments, offering a glimpse into ancient biodiversity and evolutionary processes over millions of years.
🛒 Why Buy This Fossil?
✔ RARE 21″ Giant Proplanulites laevigatus M Fossil Ammonite – Sourced from Semington By-Pass, UK
✔ Prestigious Alice Purnell Collection provenance – Highly collectible
✔ Authentic Jurassic Fossil – 165-million-year-old prehistoric relic
✔ Perfect for Collectors, Museums, and Educational Displays
✔ 100% Genuine & Certified Fossil – Comes with a Certificate of Authenticity (COA)
✔ Great Investment Piece – Fossils of this rarity and quality are only increasing in value
📦 Shipping & Packaging:
- Securely packed to ensure safe arrival
- Tracked & insured shipping for peace of mind
- Worldwide shipping available! 🌍
🔬 Don’t miss out on this scientifically significant, rare fossil! Perfect for serious collectors, museums, or as a unique display piece.
📥 Buy with confidence – 100% authentic, fully certified, and ready to ship!
🔎 Check out our other fossils & rare specimens!
🔥 RARE 21″ Giant Proplanulites laevigatus M Fossil Ammonite – Once it’s gone, it’s gone! 🔥







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