Oistoceras Ammonite Fossil Charmouth Dorset Jurassic Coast UK COA Genuine Lower Lias Green Ammonite Beds Stonebarrow Cliff

Description

Genuine Oistoceras Fossil Ammonite from Charmouth

This listing is for a genuine Oistoceras fossil ammonite from the Green Ammonite Beds, Lower Lias, Jurassic Coast: Stonebarrow Cliff, Charmouth, Lyme Regis, Dorset, UK. This carefully chosen fossil specimen includes a Certificate of Authenticity lifetime guarantee generic card. The photo shows the actual fossil you will receive, allowing you to view the natural ammonite form, preservation, surface detail, matrix, colour and overall display character of this individual piece before purchase. Full sizing details can be seen in the photo.

Your specimen was discovered by our own team members, Alister and Alison, and has been cleaned, prepped and treated by Alison. This gives the fossil a clear collecting history, from discovery on the Jurassic Coast through to careful preparation and presentation.

Oistoceras Ammonite Information

Oistoceras is an Early Jurassic ammonite genus known from Lower Lias deposits. Ammonites were extinct marine cephalopods related to modern squid, cuttlefish and nautilus, living inside coiled, chambered shells. Their shells are among the most recognisable fossils of the Jurassic Period and are highly valued by collectors for their natural spiral form, scientific importance and strong display appeal.

Oistoceras ammonites are typically associated with a compact, planispiral shell form and distinctive ribbed ornamentation. Depending on preservation, specimens may show visible whorl structure, curved ribs, growth lines, a defined outer whorl and natural mineralised surface detail. The shell form gives the fossil a classic Lower Jurassic appearance, making it attractive for collectors interested in named ammonite genera from the Dorset coast.

Ammonites such as Oistoceras are also important in palaeontology because they evolved rapidly and were widely distributed in ancient seas. This makes many ammonite groups useful for dating and correlating marine rock layers. A Lower Lias ammonite from Charmouth therefore has both visual and scientific interest, representing part of the rich marine fossil record of the Early Jurassic.

Green Ammonite Beds and Lower Lias Geology

This specimen comes from the Green Ammonite Beds, part of the Lower Lias sequence exposed around Charmouth and Lyme Regis. These beds were deposited during the Early Jurassic, when the region was covered by a marine environment. Fine sediments accumulated on the seabed, preserving ammonites, belemnites, bivalves, gastropods, fish remains and marine reptile fossils within the rock layers.

The Green Ammonite Beds are well known for producing classic Jurassic Coast ammonites and other marine fossils. Fossils from this horizon are sought after because they combine recognised geological context with strong locality appeal. The rocks record a time when ammonites were abundant and diverse, making the area especially important for collectors and students of British palaeontology.

Stonebarrow Cliff, Charmouth and the Jurassic Coast

Stonebarrow Cliff near Charmouth is one of the notable fossil-bearing locations on the Dorset Jurassic Coast. The area lies close to Lyme Regis, a region with a world-famous history of fossil collecting and geological discovery. The cliffs and foreshore around Charmouth expose fossiliferous Lower Jurassic rocks that have produced many important ammonites and other marine fossils.

The Jurassic Coast is a UNESCO World Heritage Site, celebrated for its outstanding sequence of rocks and fossils that record a remarkable span of Earth history. A fossil from Stonebarrow Cliff carries excellent provenance for collectors of British fossils, Dorset ammonites, Jurassic Coast specimens and Lower Lias marine life.

Preparation, Display and Collectable Appeal

This Oistoceras ammonite has been cleaned, prepped and treated by Alison to help present the specimen clearly while retaining its natural geological character. Careful preparation is important for Jurassic ammonites, as it helps reveal the shell form, ribbing, matrix and surface detail while preserving the authentic appearance of the fossil.

This specimen is suitable for ammonite collectors, fossil enthusiasts, geology students, natural history displays, educational collections, cabinet displays or as a distinctive gift for someone interested in British palaeontology. Its named ammonite genus, Lower Lias age, Green Ammonite Beds origin, Stonebarrow Cliff locality and team-discovered provenance make it a desirable addition to a carefully documented fossil collection.

Certificate of Authenticity Included

This fossil is supplied with a Certificate of Authenticity lifetime guarantee generic card, confirming that it is a genuine specimen. The fossil shown in the photo is the exact piece you will receive, making this Oistoceras ammonite an authentic and attractive Jurassic fossil from Charmouth, Dorset, UK.