Description
Liparoceras Fossil Ammonite from the Green Ammonite Marls
This genuine Liparoceras fossil ammonite comes from the Green Ammonite Marls of the Lower Lias, collected from Stonebarrow Cliff near Charmouth and Lyme Regis on the Jurassic Coast of Dorset, UK. This is a highly collectable British Jurassic ammonite from one of the most famous fossil-bearing coastlines in the world, known for its exceptional Lower Jurassic marine fossils and historic palaeontological importance.
Liparoceras is a distinctive Lower Jurassic ammonite genus, prized by collectors for its robust shell form, strong ornamentation and classic Jurassic Coast association. Ammonites were extinct marine cephalopods related to modern squid, cuttlefish and nautilus. They lived in ancient seas and are among the most important fossils used for dating Jurassic rock layers, as many ammonite groups evolved rapidly and can be linked to specific geological horizons.
Geological Location and Age
This specimen comes from the Green Ammonite Marls, Lower Lias Group, Stonebarrow Cliff, Charmouth, Lyme Regis, Dorset, UK. The Green Ammonite Marls form part of the famous Lower Jurassic sequence exposed along the Dorset coast and are particularly associated with ammonites, marine reptiles, fish remains, bivalves, belemnites and other fossil marine life.
The fossil dates to the Early Jurassic Period, approximately 190 million years old. During this time, the area now forming the Dorset coast was covered by a warm, shallow to moderately deep marine environment. Fine muds and calcareous sediments accumulated on the sea floor, gradually preserving the remains of marine organisms in layers that are now exposed by coastal erosion along the Jurassic Coast.
Species, Form and Fossil Detail
Liparoceras ammonites are known for their rounded, often inflated whorls and strong ribbing, with some examples showing prominent tubercles or nodular ornamentation. These features give the genus a bold and attractive appearance, making it especially desirable among collectors of British Jurassic ammonites.
The shell would originally have been divided internally into chambers, with the living animal occupying the outer body chamber. As the ammonite grew, it added new chambers and used the older ones for buoyancy control within the Jurassic sea. The external ribbing and ornamentation are important palaeontological features, helping distinguish Liparoceras from other ammonites found in the same coastal succession.
Scientific Classification and Palaeontology
Liparoceras belongs to the ammonite order Ammonitida and is associated with the superfamily Eoderoceratoidea and the family Liparoceratidae. The genus is especially linked with Lower Jurassic Pliensbachian deposits and is an important fossil group within the ammonite faunas of the British Lower Lias.
The Green Ammonite Marls at Charmouth and Lyme Regis are well known for producing ammonites that help define and correlate Lower Jurassic horizons. Fossils from this area are valued not only for their display appeal but also for their geological context, as the surrounding cliffs preserve a detailed record of ancient marine life and changing environmental conditions during the Early Jurassic.
Jurassic Coast Collecting Interest
Stonebarrow Cliff and the wider Charmouth to Lyme Regis coastline are among the most famous fossil collecting areas in Britain. The cliffs are continually eroded by the sea, revealing fossils from the Lower Jurassic beds. Ammonites from this area are especially popular with collectors because they combine strong visual character, excellent locality information and a direct connection to the historic Jurassic Coast fossil tradition.
A Liparoceras ammonite from the Green Ammonite Marls is a classic Dorset fossil, suitable for collectors interested in British ammonites, Lower Jurassic palaeontology, display specimens, educational geology collections and natural history cabinets. Its named genus, precise locality and historic geological setting make it an appealing specimen for both experienced fossil collectors and those building a focused Jurassic Coast collection.
Authenticity and Presentation
This fossil is a genuine specimen and includes a fully hand-signed Premium Certificate of Authenticity. Full sizing please see photo. The fossil is a carefully chosen piece, with the photo showing the actual specimen you will receive.
This Liparoceras ammonite represents an authentic piece of Britain’s Lower Jurassic marine heritage, collected from the renowned Green Ammonite Marls of Stonebarrow Cliff, Charmouth, near Lyme Regis, Dorset. It is an excellent natural history specimen with strong geological interest, classic Jurassic Coast provenance and attractive collector appeal.
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