Description
Authentic Jurassic Ammonite Fossil – Lytoceras from Somerset, England
Offered here is a genuine Lytoceras Fossil Ammonite, a striking marine fossil from the world-famous Beacon Limestone Formation of Ilminster, Somerset, United Kingdom. This specimen represents an exceptional piece of Jurassic history, preserved naturally in limestone and displaying the elegant coiled form that makes ammonites one of the most sought-after fossil groups by collectors, geologists, and natural history enthusiasts.
This is the exact specimen shown in the photographs, carefully selected for quality, preservation, and scientific interest
Geological Origin – Beacon Limestone, Jurassic Seas of Britain
The Beacon Limestone of Ilminster is renowned for producing beautifully preserved ammonites from the Jurassic Period, a time when warm, shallow seas covered much of what is now southern England. These marine limestones were deposited in calm offshore environments, allowing shells to settle gently onto the seabed and fossilise over millions of years.
Ammonites from this locality are highly prized due to their strong stratigraphic importance and their connection to classic British Jurassic fossil sites.
Fossil Type and Species – Lytoceras Ammonite
This fossil is an ammonite belonging to the genus Lytoceras, part of an important lineage of fast-swimming cephalopods that lived in open Jurassic oceans.
Lytoceras ammonites are recognised for their:
- Smooth, gracefully expanding whorls
- Deep spiral shell structure
- Streamlined morphology adapted to active swimming
- Classic ammonoid symmetry and aesthetic appeal
These traits make them highly desirable for both scientific study and decorative fossil display.
Discovery and Professional Preparation
Your specimen was personally discovered by our own experienced team members, Alister and Alison, on 29 January 2026 during field collecting in Somerset.
After recovery, the fossil was:
- Carefully cleaned
- Professionally prepared
- Stabilised and treated by Alison
This ensures the ammonite is presented at its best while remaining fully authentic and naturally preserved.
Certificate of Authenticity – Lifetime Guarantee
Every fossil we offer is a genuine natural specimen. This ammonite includes a Certificate of Authenticity lifetime guarantee generic card, giving you full confidence in its legitimacy and provenance.
Size and Display
Full sizing details can be seen clearly in the photographs. This fossil makes an outstanding display piece for:
- Fossil and mineral collections
- Geological study
- Natural history décor
- Gifts for fossil lovers, students, and collectors
A Unique Collectable from the Jurassic Coastline
This Lytoceras ammonite from Ilminster is more than a fossil—it is a real survivor of ancient Jurassic seas, preserved in British limestone for over 180 million years. With its elegant spiral form, trusted provenance, and professional preparation, it is a timeless addition to any collection.
The piece you see is the exact fossil you will receive.







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