Description
Discover the beauty and rarity of ancient marine life with this Coroniceras metophioceras janus ammonite fossil, a remarkable specimen from the Conybeari subzone, Lower Lias, Lower Sinemurian, Jurassic period. This stunning fossil was found off the famous Monmouth Beach reefs in Lyme Regis, a world-renowned site on England’s Jurassic Coast, celebrated for its rich fossil history.
Key Features:
- Species: Coroniceras metophioceras janus
- Geological Formation: Lower Lias, Conybeari Subzone
- Age: Lower Sinemurian, Jurassic (~199 million years ago)
- Location: Monmouth Beach, Lyme Regis, Dorset, England
- Size: 8 inches (see scale rule in photo for exact sizing)
- Provenance: From the prestigious Alice Purnell Collection
About Coroniceras metophioceras janus:
This ammonite species is an exceptional example of ancient marine mollusks. Known for its intricate ribbing and iconic spiral shell, Coroniceras metophioceras janus represents the diversity and beauty of ammonites that thrived in the Jurassic seas. These creatures were vital to the ecosystem, providing a glimpse into a time when Earth’s oceans were teeming with unique life forms.
This fossil’s exquisite preservation highlights the detailed structure of the ammonite’s shell, making it a must-have for collectors and fossil enthusiasts alike.
The Significance of Monmouth Beach, Lyme Regis:
The Jurassic Coast is a UNESCO World Heritage Site, famous for its outstanding geology and fossil deposits. Monmouth Beach, in particular, is celebrated for its fossil-rich reefs, yielding some of the finest examples of ammonites from the Jurassic period. This fossil is a perfect representation of the rich paleontological history of this region.
Provenance and Authenticity:
This Coroniceras metophioceras janus ammonite is part of the Alice Purnell Collection, one of the largest and most respected collections of ammonites in the world. Fossils from this collection are renowned for their rarity, scientific importance, and exceptional preservation.
Your purchase includes a Certificate of Authenticity, ensuring that the fossil is a genuine specimen, expertly identified and professionally prepared.
Why This Fossil is Special:
- Rare Species: Coroniceras metophioceras janus fossils are exceedingly rare, particularly in this size and preservation.
- Exceptional Provenance: This specimen comes from Monmouth Beach, a globally significant fossil site, and the Alice Purnell Collection.
- Detailed Preservation: The intricate details of the shell are beautifully preserved, showcasing the artistry of nature over millions of years.
- Collector’s Dream: A valuable addition to any fossil collection, perfect for display or study.
What’s Included:
- Coroniceras metophioceras janus ammonite fossil (as shown in the photos)
- Certificate of Authenticity, verifying the fossil’s age, provenance, and authenticity
Perfect for Collectors and Educators:
Whether you’re a seasoned collector, an educator, or a fossil enthusiast, this rare Coroniceras metophioceras janus ammonite fossil will be a standout piece in your collection. Its scientific significance and natural beauty make it an extraordinary find for anyone interested in Earth’s ancient history.
Additional Information:
The fossil has been professionally cleaned and prepared to ensure its natural features are preserved and highlighted. The photos provided are of the exact specimen you will receive, so you can buy with complete confidence.
All of our Fossils are 100% Genuine Specimens and come with a Certificate of Authenticity.
Don’t miss this opportunity to own a piece of Earth’s prehistoric past. This 8-inch Coroniceras metophioceras janus ammonite fossil is a true marvel of the Jurassic seas and a testament to the incredible diversity of ancient life.








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