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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RARE Promicroceras planicosta Ammonite Fossil Block – Black Ven Marls, Lower Lias, Jurassic Coast, Lyme Regis, UK
RARE Promicroceras planicosta Ammonite Fossil Block – Black Ven Marls, Lower Lias, Jurassic Coast, Lyme Regis, UK - Image 2
RARE Promicroceras planicosta Ammonite Fossil Block – Black Ven Marls, Lower Lias, Jurassic Coast, Lyme Regis, UK - Image 3
RARE Promicroceras planicosta Ammonite Fossil Block – Black Ven Marls, Lower Lias, Jurassic Coast, Lyme Regis, UK - Image 4
RARE Promicroceras planicosta Ammonite Fossil Block – Black Ven Marls, Lower Lias, Jurassic Coast, Lyme Regis, UK - Image 5
RARE Promicroceras planicosta Ammonite Fossil Block – Black Ven Marls, Lower Lias, Jurassic Coast, Lyme Regis, UK - Image 6

RARE Promicroceras planicosta Ammonite Fossil Block – Black Ven Marls, Lower Lias, Jurassic Coast, Lyme Regis, UK

SEK kr772.12

This listing is for a genuine ammonite fossil block featuring Promicroceras planicosta, a classic species from the Black Ven Marls Formation, Lower Lias (Early Jurassic, ~195 million years old). This fossil was found at Black Ven, Lyme Regis, Dorset, UK, a world-famous site on the Jurassic Coast known for its exceptional ammonite fossils.

About the Species – Promicroceras planicosta

Promicroceras is a genus of small but beautifully preserved ammonites characterized by their fine ribbing and distinctive coiled shells. These ammonites belonged to an extinct group of marine mollusks related to modern-day squids, cuttlefish, and octopuses. They thrived in ancient Jurassic seas and are highly sought after by collectors due to their intricate details.

Fossil Details:

  • Species: Promicroceras planicosta
  • Fossil Type: Ammonite fossil block
  • Formation: Black Ven Marls
  • Geological Age: Lower Lias, Jurassic (~195 million years old)
  • Location: Black Ven, Lyme Regis, Dorset, UK
  • Condition: Well-preserved ammonites embedded in a natural limestone matrix
  • Size: See scale rule in the photos for accurate measurements

Collection and Authenticity:

This fossil is part of the Alice Purnell Collection, one of the most significant ammonite collections in the world. It is 100% genuine and comes with a Certificate of Authenticity.

Why Buy From Us?

100% Genuine Specimen – Comes with a Certificate of Authenticity

From the prestigious Alice Purnell Collection

Ideal for collectors, museums, and educational displays

You will receive the exact fossil shown in the photos. Worldwide shipping available with secure packaging.

A fantastic opportunity to own a stunning ammonite fossil block from one of the UK’s most famous Jurassic fossil sites!

(Actual as seen)

Includes a fully hand-signed Premium Certificate of Authenticity.

Out of stock

SKU: AF0230 Category:

Description

This listing is for a genuine ammonite fossil block featuring Promicroceras planicosta, a classic species from the Black Ven Marls Formation, Lower Lias (Early Jurassic, ~195 million years old). This fossil was found at Black Ven, Lyme Regis, Dorset, UK, a world-famous site on the Jurassic Coast known for its exceptional ammonite fossils.

About the Species – Promicroceras planicosta

Promicroceras is a genus of small but beautifully preserved ammonites characterized by their fine ribbing and distinctive coiled shells. These ammonites belonged to an extinct group of marine mollusks related to modern-day squids, cuttlefish, and octopuses. They thrived in ancient Jurassic seas and are highly sought after by collectors due to their intricate details.

Fossil Details:

  • Species: Promicroceras planicosta
  • Fossil Type: Ammonite fossil block
  • Formation: Black Ven Marls
  • Geological Age: Lower Lias, Jurassic (~195 million years old)
  • Location: Black Ven, Lyme Regis, Dorset, UK
  • Condition: Well-preserved ammonites embedded in a natural limestone matrix
  • Size: See scale rule in the photos for accurate measurements

Collection and Authenticity:

This fossil is part of the Alice Purnell Collection, one of the most significant ammonite collections in the world. It is 100% genuine and comes with a Certificate of Authenticity.

Why Buy From Us?

100% Genuine Specimen – Comes with a Certificate of Authenticity

From the prestigious Alice Purnell Collection

Ideal for collectors, museums, and educational displays

You will receive the exact fossil shown in the photos. Worldwide shipping available with secure packaging.

A fantastic opportunity to own a stunning ammonite fossil block from one of the UK’s most famous Jurassic fossil sites!

Additional information

Weight 0.1 g
Dimensions 10 × 10 × 10 cm
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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