Promicroceras Calcite Ammonite Fossil Jurassic Coast Dorset UK Lower Lias Black Ven Marls Charmouth COA Included

Description

Genuine Promicroceras Calcite Ammonite – Jurassic Coast Fossil from Dorset, UK

Offered here is a beautiful Promicroceras fossil calcite ammonite, preserved within the famous Black Ven Marls of the Lower Lias Formation along the world-renowned Jurassic Coast of Dorset, England. This specimen comes from Stonebarrow Cliff, Charmouth, Lyme Regis, one of the most productive and historically important fossil localities in Europe.

This is a carefully chosen piece, selected for its strong shell detail, attractive calcite preservation, and excellent display quality. The photographs show the exact fossil you will receive, with full sizing clearly visible in the provided images.

Every fossil we offer is a genuine specimen, and this ammonite includes a Certificate of Authenticity with lifetime guarantee, supplied as a generic authenticity card for permanent documentation and complete buyer confidence.

Geological Setting – Black Ven Marls, Lower Lias

This fossil originates from the famous Black Ven Marls, part of the Lower Lias Group, dating to the Early Jurassic approximately 190–200 million years ago. During this period, Dorset lay beneath a warm, shallow marine sea rich in ammonites, belemnites, fish, and large marine reptiles such as ichthyosaurs and plesiosaurs.

The Black Ven Marls were deposited in a relatively calm offshore environment where fine sediments settled slowly onto the seabed. Low oxygen conditions helped preserve shells before they were disturbed, resulting in fossils of exceptional quality.

Stonebarrow Cliff and the Charmouth coastline are internationally recognised for producing some of the finest Lower Jurassic ammonites in the world, making fossils from this region highly collectible.

Fossil Species – Promicroceras Ammonite

Promicroceras is a distinctive genus of Early Jurassic ammonite belonging to the extinct subclass Ammonoidea, within the class Cephalopoda. Ammonites were marine molluscs related to modern squid and cuttlefish and were among the most abundant and diverse predators of Jurassic oceans.

Promicroceras ammonites are typically characterised by their tightly coiled shells, fine ribbing, and elegant whorl structure. They are especially well known from the Lower Lias deposits of Dorset, where they are valued both scientifically and aesthetically.

As an ammonite genus from the Early Jurassic, Promicroceras contributes to our understanding of ammonite evolution and serves as an important fossil group for correlating Lower Lias marine strata.

Calcite Preservation and Notable Features

This specimen displays attractive calcite preservation, formed when mineral-rich fluids replaced or infilled the original ammonite shell during fossilisation. Calcite ammonites often show enhanced contrast, subtle crystalline highlights, and a distinctive bright appearance compared to standard limestone-preserved shells.

The fossil retains its natural spiral geometry and ribbed ornamentation, making it an excellent collector specimen and a striking example of Jurassic marine life.

Promicroceras fossils are particularly popular due to their intricate detail and connection to the iconic fossil beds of Lyme Regis and Charmouth.

Authenticity and Collector Confidence

This is a 100% genuine Promicroceras calcite ammonite fossil, responsibly sourced from Stonebarrow Cliff on the Dorset Jurassic Coast.

It includes a lifetime Certificate of Authenticity, ensuring complete confidence in provenance and genuineness.

Ideal For Collectors, Gifts and Educational Displays

This fossil is perfect for:

• Ammonite and Jurassic fossil collectors
• Charmouth and Lyme Regis Jurassic Coast enthusiasts
• Calcite mineral and fossil lovers
• Natural history displays and geology collections
• Unique prehistoric gifts from England

A wonderful opportunity to own an authentic Promicroceras calcite ammonite from the legendary Black Ven Marls of Charmouth, preserved from an ancient sea nearly 200 million years ago and accompanied by a lifetime Certificate of Authenticity.