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.

FREE UK DELIVERY - Save up to 60%

Sale!
Promicroceras marstonense Fossil Ammonite Somerset UK Polished Slab Lias Obtusum Zone Lower Jurassic Marston Magna
Promicroceras marstonense Fossil Ammonite Somerset UK Polished Slab Lias Obtusum Zone Lower Jurassic Marston Magna - Image 2

Promicroceras marstonense Fossil Ammonite Somerset UK Polished Slab Lias Obtusum Zone Lower Jurassic Marston Magna

Original price was: £42.00.Current price is: £35.70.

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: VF0237 Category:

Description

Identification and Geological Context

This listing features a Promicroceras marstonense fossil ammonite from Marston Magna, Somerset, UK. The specimen is identified with the Marston Marble, the Obtusum Zone and the Lower Lias, placing it within the Lower Jurassic. These geological details make the fossil especially appealing to collectors who value clearly identified specimens with a defined stratigraphic context.

Promicroceras is an ammonite genus. Ammonites were extinct marine cephalopods with chambered shells, and their fossils are widely used in geological studies because particular forms can help correlate rocks of similar age. The identification Promicroceras marstonense connects this specimen to a specific ammonite type rather than a generic ammonite description. The Obtusum Zone provides an additional biostratigraphic reference within the Lower Lias.

Specimen Presentation

The fossil has been sliced and polished to create a clear display surface that highlights the internal structure of the ammonite fossil. It is presented as a polished slab and is described as high grade in the product identification. The finished surface makes this specimen suitable for fossil collections, geological displays, educational use and decorative presentation where a genuine Jurassic fossil is desired.

The locality associated with this specimen is Marston Magna in Somerset, UK. Marston Magna is known for its fossil-bearing Jurassic geological material, and the stated Marston Marble association gives this specimen useful geological identity for collectors and enthusiasts. The combination of locality, formation-related material, geological stage and zone makes the piece more informative than an ammonite specimen offered without stratigraphic details.

Collector Interest

This Promicroceras marstonense slab can complement collections focused on ammonites, Lower Jurassic fossils, British geology or stratigraphically documented specimens. It is also a practical teaching aid for discussing ammonite morphology, fossil preparation, Jurassic marine environments and the use of ammonites in biostratigraphy. The sliced and polished presentation allows the specimen to be displayed as a geological object while retaining its scientific and collecting interest.

The polished slab format is suitable for a cabinet, shelf, study, classroom or natural history display. Full sizing is shown in the photographs. The photograph shows the actual specimen you will receive.

Authenticity and Certificate

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

The certificate wording is included with the specimen as stated above. This provides accompanying documentation for collectors purchasing the fossil as a genuine specimen. Please refer to the photographs for the complete presentation, finish and full sizing of the individual slab.

Reviews

There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

Related products