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 Marston Magna Somerset Polished Slab: Lower Jurassic Marston Marble Obtusum Zone

Original price was: £24.00.Current price is: £19.20.

An exceptional High-Grade Sliced and Polished Fossil Slab featuring multiple specimens of Promicroceras marstonense, sourced from the renowned Marston Magna locality in Somerset, UK. These beautifully preserved ammonites are embedded in the distinctive Marston Marble, a fine-grained limestone from the Obtusum Zone of the Lower Lias, dating to the Lower Jurassic period, approximately 195–200 million years ago.

This premium fossil slab has been expertly prepared and polished to enhance the detail and clarity of the ammonite shells. Each specimen displays its characteristic tightly coiled morphology, prominent ribbing, and fine suture lines that are signature features of the species.

Fossil Type: Ammonite (extinct marine cephalopod)

Species: Promicroceras marstonense

Geological Age: Lower Jurassic – Hettangian to Sinemurian, Obtusum Zone

Formation: Lower Lias, Marston Marble

Depositional Environment: Formed in a shallow marine environment with calm, low-energy conditions. Fine sediments allowed for detailed preservation of marine invertebrates, with occasional anoxic layers promoting fossil integrity. Marston Marble is known for producing well-preserved, densely packed ammonite assemblages.

Morphological Features:

  • Small, evolute ammonites with pronounced radial ribbing
  • Tight coiling and minimal umbilicus
  • Excellent preservation of internal whorls and chamber partitions

Notable:

  • High-grade display slab from a classic Jurassic site
  • Contains multiple ammonites across a polished limestone surface
  • Ideal for collectors, educational purposes, and interior decor
  • Actual specimen shown – photo is of the exact item you will receive

Authenticity: All of our fossils are 100% genuine natural specimens and come with a Certificate of Authenticity. Each square or cube shown in the photo scale represents 1cm – please refer to the image for exact dimensions.

 

This rare Promicroceras marstonense slab from Marston Magna offers a striking and scientifically valuable glimpse into early Jurassic marine life. A stunning fossil for serious collectors and enthusiasts alike.

(Actual as seen)

Only 1 left in stock

SKU: VF0200 Category:

Description

Promicroceras marstonense Fossil

This collectible fossil features Promicroceras marstonense preserved as a sliced, high grade polished slab. It is identified with the Marston Marble, Obtusum Zone, Lower Lias and Lower Jurassic. The specimen is associated with Marston Magna, Somerset, UK, making it an appealing addition to collections focused on British fossils, Jurassic geology and ammonites.

Ammonite Identification

Promicroceras marstonense is an ammonite fossil identification associated with the Lower Jurassic. Ammonites were extinct marine cephalopods with coiled shells, and their fossils are widely collected for their importance in understanding ancient marine environments and geological time. The inclusion of the Obtusum Zone provides a more specific stratigraphic context within the Lower Jurassic and Lower Lias.

Marston Marble and Somerset Geology

The specimen is identified with Marston Marble and the Marston Magna area of Somerset. Marston Magna fossils are valued by collectors interested in material from classic British geological localities. The combination of the Promicroceras marstonense identification, Marston Marble designation and Obtusum Zone reference gives this polished fossil slab a clear geological and collecting context.

Polished Fossil Slab Display

As a sliced and polished slab, this fossil is suited to display in a home collection, study, office, classroom or geological cabinet. The polished presentation allows the supplied fossil material to be viewed as a decorative geological specimen while retaining its interest as a Lower Jurassic ammonite fossil. It can also make a thoughtful gift for fossil collectors, ammonite enthusiasts, geology students and anyone interested in Somerset’s natural history.

The photograph shows the actual specimen you will receive.

Sizing and Presentation

Full sizing is shown in the photographs. Please review the photographs carefully for the complete visual presentation and scale of this individual polished slab. The images are intended to show the actual specimen available, including its shape, surface finish and overall appearance.

Certificate of Authenticity

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

The included certificate wording provides assurance that the item is supplied as a genuine fossil specimen. This makes the piece suitable for personal collecting, educational display or presentation as a distinctive geological gift. Its named identification and Lower Jurassic stratigraphic context also make it a useful conversation piece for collections featuring British ammonites and fossil material from Somerset.

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