Fossils for Sale - High-quality BRITISH and WORLDWIDE Fossils. An impressive selection of fossils, including Ammonites, Trilobites, Belemnites, Fossil Fish, Fossil Shark Teeth, Fossilised Insects in Amber, Dinosaurs, and Reptiles. UK Fossils was formed in 1988 and collects and preps our own fossils in the heart of the Jurassic Coast, collecting fossils from Lyme Regis, Charmouth and Somerset. Our passion for fossils is reflected in our carefully curated collection, which includes some of the rarest and most unique specimens available.

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Promicroceras Calcite Ammonite Fossil - Black Ven Marls - Lower Jurassic - Charmouth Lyme Regis UK - Genuine with Certificate
Promicroceras Calcite Ammonite Fossil - Black Ven Marls - Lower Jurassic - Charmouth Lyme Regis UK - Genuine with Certificate - Image 2
Promicroceras Calcite Ammonite Fossil - Black Ven Marls - Lower Jurassic - Charmouth Lyme Regis UK - Genuine with Certificate - Image 3
Promicroceras Calcite Ammonite Fossil - Black Ven Marls - Lower Jurassic - Charmouth Lyme Regis UK - Genuine with Certificate - Image 4

Promicroceras Calcite Ammonite Fossil – Black Ven Marls – Lower Jurassic – Charmouth Lyme Regis UK – Genuine with Certificate

Original price was: £36.00.Current price is: £32.40.

A superb example of Promicroceras, this calcite-filled ammonite fossil comes from the renowned Black Ven Marls within the Lower Lias along the spectacular Jurassic Coast at Stonebarrow Cliff, Charmouth, Lyme Regis, Dorset, UK.

Discovered by our expert team members Alister and Alison on 26 April 2025, this stunning piece has been expertly cleaned, prepped and treated by Alison herself. It is a genuine specimen, and the photograph shows the exact fossil you will receive.

Promicroceras is one of the most recognisable genera of Early Jurassic ammonites, notable for its small, involute whorls, narrow ribs, and beautifully preserved calcite infills. This specimen represents the Sinemurian Stage and is a key fossil for dating rocks from this time.

These ammonites thrived in low-energy marine environments, where rapid burial in soft sediment led to their exquisite preservation. The calcite infill occurred during diagenesis, giving the fossil a shimmering internal structure highly prized by collectors.

 

Geological & Taxonomic Information:

  • Species: Promicroceras sp.
  • Fossil Type: Ammonite (Calcite-filled)
  • Geological Period: Jurassic
  • Stage: Sinemurian (Lower Jurassic)
  • Formation: Black Ven Marls, Lower Lias
  • Location: Stonebarrow Cliff, Charmouth, Lyme Regis, Dorset, UK
  • Depositional Environment: Shallow marine shelf
  • Family: Oxynoticeratidae
  • Superfamily: Psiloceratoidea
  • Order: Ammonitida

 

What You Receive:

  • The actual fossil specimen photographed
  • A Certificate of Authenticity
  • Professionally packed and shipped with care

This piece is an ideal acquisition for fossil collectors, educational institutions, or anyone inspired by Earth’s prehistoric oceans.

 

Note:

All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.

Scale cube = 1cm. Please refer to the photograph for full dimensions.

(Actual as seen)

Only 1 left in stock

SKU: CF3197 Category:

Description

A superb example of Promicroceras, this calcite-filled ammonite fossil comes from the renowned Black Ven Marls within the Lower Lias along the spectacular Jurassic Coast at Stonebarrow Cliff, Charmouth, Lyme Regis, Dorset, UK.

Discovered by our expert team members Alister and Alison on 26 April 2025, this stunning piece has been expertly cleaned, prepped and treated by Alison herself. It is a genuine specimen, and the photograph shows the exact fossil you will receive.

Promicroceras is one of the most recognisable genera of Early Jurassic ammonites, notable for its small, involute whorls, narrow ribs, and beautifully preserved calcite infills. This specimen represents the Sinemurian Stage and is a key fossil for dating rocks from this time.

These ammonites thrived in low-energy marine environments, where rapid burial in soft sediment led to their exquisite preservation. The calcite infill occurred during diagenesis, giving the fossil a shimmering internal structure highly prized by collectors.

 

Geological & Taxonomic Information:

  • Species: Promicroceras sp.
  • Fossil Type: Ammonite (Calcite-filled)
  • Geological Period: Jurassic
  • Stage: Sinemurian (Lower Jurassic)
  • Formation: Black Ven Marls, Lower Lias
  • Location: Stonebarrow Cliff, Charmouth, Lyme Regis, Dorset, UK
  • Depositional Environment: Shallow marine shelf
  • Family: Oxynoticeratidae
  • Superfamily: Psiloceratoidea
  • Order: Ammonitida

 

What You Receive:

  • The actual fossil specimen photographed
  • A Certificate of Authenticity
  • Professionally packed and shipped with care

This piece is an ideal acquisition for fossil collectors, educational institutions, or anyone inspired by Earth’s prehistoric oceans.

 

Note:

All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.

Scale cube = 1cm. Please refer to the photograph for full dimensions.

Additional information

Era

Jurassic
Origin

United Kingdom

Jurassic Information

The Jurassic Period (201–145 million years ago) was the golden age of dinosaurs, with iconic species like Brachiosaurus, Stegosaurus, and Allosaurus dominating the land. It was a time of warm, humid climates, with high sea levels that created vast shallow seas, supporting abundant marine reptiles, ammonites, and early coral reefs. The first birds, such as Archaeopteryx, evolved from small theropod dinosaurs, while early mammals remained small and nocturnal. Lush forests of cycads, conifers, and ferns covered the land, providing food for giant herbivores. The breakup of the supercontinent Pangaea accelerated, shaping Earth's geography and setting the stage for the diverse ecosystems of the Cretaceous.

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