Neophyllites Fossil Calcite Ammonite Jurassic Lyme Regis Dorset Black Ven Marls Lower Lias Stonebarrow Cliff Genuine COA Included

Description

Genuine Neophyllites Calcite Ammonite Fossil from the Jurassic Coast

Offered here is a beautiful Neophyllites fossil calcite ammonite, collected from the renowned Black Ven Marls of the Lower Lias, along the world-famous Jurassic Coast at Stonebarrow Cliff, Charmouth, Lyme Regis, Dorset, UK.

This is a genuine ammonite fossil preserved with striking calcite mineralisation, giving the specimen exceptional natural detail and contrast. The fossil shown in the photographs is the exact piece you will receive — a carefully chosen specimen selected for both scientific interest and display quality.

This fossil is a genuine specimen and includes a Certificate of Authenticity with a lifetime guarantee generic card, ensuring long-term confidence in its provenance and authenticity. Full sizing is provided clearly in the accompanying photos.

Geological Origin – Black Ven Marls, Lower Lias Formation

This Neophyllites ammonite comes from the Black Ven Marls, part of the Lower Jurassic Lower Lias Group, deposited approximately 195–200 million years ago.

During this period, Dorset was submerged beneath a warm shallow sea rich in marine life. Fine muds and silts accumulated on the seabed, forming the marls that are now exposed in the cliffs around Charmouth and Lyme Regis.

Stonebarrow Cliff and Black Ven are among the most important fossil-producing locations in Europe, celebrated for yielding ammonites, marine reptiles, fossil fish, and rare invertebrates preserved in extraordinary detail.

The Jurassic Coast is a UNESCO World Heritage Site, providing one of the most complete records of early Jurassic marine environments anywhere in the world.

Fossil Type – Neophyllites Ammonite Shell Preservation

Neophyllites is a distinctive genus of ammonite, an extinct group of marine cephalopods related to modern squid and nautilus. Ammonites were highly successful predators in Jurassic seas, and their coiled shells make them some of the most iconic fossils ever discovered.

Scientific classification includes:

• Class: Cephalopoda
• Subclass: Ammonoidea
• Order: Ammonitida
• Superfamily: Phylloceratoidea
• Genus: Neophyllites

Neophyllites specimens are especially prized for their elegant whorl shape and often smoother shell morphology compared with heavily ribbed ammonites.

Morphology and Display Features

This fossil shows excellent preservation enhanced by calcite infilling. Notable features may include:

• Smooth, tightly coiled shell form
• Subtle growth lines and natural ammonite curvature
• Calcite mineralisation providing contrast and strength
• Strong three-dimensional presence in the matrix

Calcite preservation occurs when mineral-rich groundwater replaces original shell material, creating fossils with a bright, crystalline finish and outstanding durability.

Depositional Environment – Jurassic Shallow Marine Seabed

The Black Ven Marls were laid down in a calm offshore sea environment. Periodic low-oxygen seabed conditions helped protect shells from scavengers, allowing ammonites to become buried quickly in soft mud.

Over millions of years, pressure, sedimentation, and mineral replacement transformed these shells into fossils, leaving behind the spectacular ammonites now found along the Dorset coast.

This fossil represents an authentic snapshot of Jurassic ocean life, preserved from a time when ammonites dominated marine ecosystems.

Authenticity and Collectability

This specimen is ideal for collectors of:

• Jurassic ammonites
• Lyme Regis fossils
• Calcite mineralised specimens
• Lower Lias marine life
• UK coastal fossil treasures

You will receive:

• Genuine Neophyllites calcite ammonite fossil
• Exact specimen photographed
• Carefully selected display-quality piece
• Certificate of Authenticity with lifetime guarantee

A Timeless Fossil from Dorset’s Ancient Seas

A Neophyllites ammonite from Charmouth is more than a collectible — it is a true piece of Earth’s deep history, preserved from the early Jurassic seas of Lyme Regis. Perfect for any serious fossil collection, educational display, or unique natural history gift.