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 marstonense Fossil Ammonite Polished Slab Marston Magna UK

Original price was: £60.00.Current price is: £51.00.

An exquisite High Grade Sliced and Polished Fossil Slab containing numerous Promicroceras marstonense ammonites from the iconic Marston Marble of Marston Magna, Somerset, UK. These beautiful ammonites are preserved in dark, fine-grained limestone, part of the Obtusum Zone in the Lower Lias, dating to the Lower Jurassic (~195–200 million years ago).

Promicroceras marstonense is one of the most characteristic and sought-after ammonites from this region, known for its compact size, detailed ribbing, and aesthetic arrangement in dense fossiliferous layers. The slab has been expertly cut and polished to reveal the structure, colour contrast, and detail of the ammonites embedded within the matrix.

Fossil Type: Ammonite (extinct marine cephalopod)

Species: Promicroceras marstonense

Geological Age: Lower Jurassic – Obtusum Zone, Lower Lias

Formation: Marston Marble (Lower Lias Group)

Depositional Environment: This fossil slab was formed in a quiet, shallow marine setting where fine muds and silts accumulated and allowed for exceptional fossil preservation. Periodic anoxic conditions enhanced the conservation of hard-shelled marine organisms, particularly ammonites.

Morphological Features:

  • Small, finely ribbed ammonites with evolute coiling
  • Dense assemblage of ammonites in natural orientation
  • Highly polished surface highlights growth lines and fossil detail

Notable:

  • High-grade decorative and scientific fossil slab
  • Classic fossil locality from British palaeontology
  • Ideal for display, collectors, or educational purposes
  • The exact specimen shown is the one for sale

Authenticity: All of our fossils are 100% genuine natural specimens and are provided with a Certificate of Authenticity. Please refer to the scale cube in the image (1cm per square) for full sizing details.

 

This Promicroceras marstonense ammonite slab is a true collector’s item—both a window into Early Jurassic marine life and a beautiful geological showpiece from the famed fossil beds of Somerset.

(Actual as seen)

Only 1 left in stock

SKU: VF0252 Category:

Description

Promicroceras marstonense Fossil

This genuine Promicroceras marstonense fossil is presented as a sliced, high-grade polished slab from Marston Magna, Somerset, UK. The specimen is identified as a Marston Magna ammonite and is associated with the Marston Marble, the Obtusum Zone, the Lower Lias and the Lower Jurassic. Its polished presentation makes the fossil suitable for collectors who appreciate both scientifically identified material and attractive geological display pieces.

Geological Identification

Promicroceras marstonense is an ammonite fossil from the Lower Jurassic. It is associated with the Obtusum Zone within the Lower Lias, providing a useful stratigraphic context for geological study and fossil collecting. The Marston Marble is a recognised fossil-bearing geological material from the Marston Magna area of Somerset, making this specimen of interest to collectors focused on British Jurassic fossils, ammonites and regional geology.

Ammonite fossils are particularly valued because their coiled shells can provide a visible connection between palaeontology and stratigraphy. Jurassic ammonites are frequently used by collectors and students to explore the succession of marine rocks and the changing distribution of fossil organisms through geological time. The named zone and Lower Jurassic context give this specimen added educational relevance beyond its decorative polished finish.

Specimen Presentation

This fossil has been sliced and polished to create a clear display surface while retaining the character of the geological material. The polished slab format is well suited to a fossil cabinet, study collection, geology room, educational display or Jurassic-themed interior. The specimen can also appeal to collectors of Somerset fossils, British ammonites, Lower Lias material and stratigraphically documented geological specimens.

The locality associated with this fossil is Marston Magna, Somerset, UK. The regional setting connects the specimen with the rich Jurassic geology of southern Britain and gives it a specific collecting context for comparison with other British ammonite material. Full sizing is shown in the photographs.

Authenticity and Photographs

This Fossil is a genuine specimen and Includes a Certificate of Authenticity lifetime guarantee generic card.

The photograph shows the actual specimen you will receive.

The included authenticity wording is provided with the specimen, while the photographs allow the purchaser to view the exact polished slab offered. Natural fossil material may display variations in colour, pattern, surface texture and mineral detail as part of its geological character. These natural features contribute to the individuality of a genuine fossil and are part of its appeal to collectors.

Collector and Display Use

This Promicroceras marstonense slab is a suitable addition to collections of ammonites, Lower Jurassic fossils, Lower Lias specimens, Somerset geology and British palaeontology. It can be displayed horizontally or vertically according to the collector’s preferred arrangement and works well alongside other stratigraphically identified fossils. Its combination of a named fossil identification, Marston Magna locality, Obtusum Zone association and polished slab presentation makes it a practical choice for both educational and decorative collecting.

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