Description
Bed of Promicroceras Fossil Calcite Ammonites
This listing is for a genuine Bed of Promicroceras fossil calcite ammonites from the Black Ven Marls, Lower Lias, Jurassic Coast, Black Ven, Charmouth, Lyme Regis, Dorset, UK. This carefully chosen fossil specimen preserves multiple ammonites together in a natural fossil bed, making it an excellent display piece for collectors who appreciate British Jurassic fossils, ammonite assemblages, and classic coastal geology.
The photograph shows the actual specimen you will receive, so please refer to the image for full sizing, shape, ammonite coverage, colour, preservation, matrix detail, and overall display character. This fossil includes a fully hand-signed Premium Certificate of Authenticity, providing clear reassurance that the specimen supplied is genuine.
Fossil Species and Ammonite Type
Promicroceras is an extinct ammonite genus from the Early Jurassic. Ammonites were marine cephalopods related to modern squid, cuttlefish, octopus, and nautilus. They lived inside coiled chambered shells, with the animal occupying the outer body chamber while the internal chambers helped with buoyancy control in the ancient sea.
Promicroceras ammonites are popular with collectors because they often preserve as attractive small, tightly coiled shells with distinct ribbing and a classic ammonite shape. Their compact form, regular whorl pattern, and detailed shell ornament make them especially appealing when several examples are preserved together on a single slab or bed. A fossil bed such as this offers more than one ammonite form to study and display, giving the specimen strong educational and visual interest.
Geological Formation and Age
This specimen comes from the Black Ven Marls of the Lower Lias, part of the Lower Jurassic sequence exposed along the Dorset coast. The Lower Jurassic represents an important period in Earth history, when shallow marine environments covered much of what is now southern England. These ancient seas supported a wide range of marine life, including ammonites, belemnites, bivalves, fish, marine reptiles, and other invertebrates.
The Black Ven Marls are well known for producing beautifully preserved fossils from fine-grained marine sediments. These mud-rich deposits accumulated on the sea floor and helped preserve shells and skeletal remains over millions of years. In this specimen, the ammonites are preserved with calcite, giving them attractive mineral character as well as palaeontological importance.
Jurassic Coast Locality
Black Ven, Charmouth, and Lyme Regis form part of the world-famous Jurassic Coast of Dorset, a UNESCO World Heritage coastline celebrated for its outstanding geology and fossil record. The cliffs and foreshore in this area expose a sequence of Early Jurassic rocks that have been studied and collected for generations.
Fossils from this locality are especially desirable because they combine scientific interest, historic British collecting appeal, and strong display quality. The Charmouth and Lyme Regis area is internationally recognised for ammonites and other marine fossils, making this specimen a classic example of Dorset Jurassic Coast palaeontology.
Calcite Preservation and Natural Features
The ammonites in this fossil bed are preserved as calcite fossils within their natural matrix. Calcite preservation can enhance the visual appearance of ammonites by giving the shells attractive mineral tones, contrast, and surface detail. Depending on the individual fossil surfaces, the specimen may show pale cream, grey, brown, golden, or stone-coloured areas, along with natural matrix texture.
The ammonites may display ribbing, whorl structure, coiled shell geometry, body chamber outlines, and areas of natural shell replacement. As a genuine fossil bed, the specimen may also show natural cracks, matrix marks, weathered edges, small cavities, mineral staining, partial ammonites, compressed sections, or varied preservation across the slab. These features are typical of authentic Jurassic fossils and add to the individual character of the piece.
Collecting, Display and Gift Appeal
This Bed of Promicroceras fossil calcite ammonites is ideal for a fossil cabinet, natural history display, geology collection, study, office, classroom, or collector’s shelf. Its multiple ammonite arrangement makes it particularly attractive for display, as the viewer can appreciate several fossil shells preserved together in their original geological context.
It would make a thoughtful gift for fossil collectors, ammonite enthusiasts, geology students, teachers, natural history fans, Jurassic Coast collectors, or anyone interested in prehistoric marine life. The combination of Promicroceras ammonites, calcite preservation, Black Ven Marls origin, and Dorset Jurassic Coast locality gives this specimen strong collecting appeal for eBay, Etsy, and WooCommerce buyers looking for genuine British fossils.
Authenticity and Premium Certificate
This fossil is a genuine specimen and includes a fully hand-signed Premium Certificate of Authenticity. The certificate confirms that the item supplied is an authentic fossil specimen selected for collecting, study, display, and gifting.
The photograph shows the actual Bed of Promicroceras fossil calcite ammonites you will receive. Please view the photo carefully for full sizing, ammonite placement, fossil detail, matrix condition, colour, natural features, and overall display quality.
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