Description
Promicroceras marstonense Fossil Ammonite
This multi-block fossil features the ammonite identification Promicroceras marstonense and is associated with Marston Magna in Somerset, UK. It is described as Marston Marble from the Obtusum Zone of the Lower Lias, Lower Jurassic. The combination of a named ammonite fossil, a defined Jurassic stratigraphic zone and a recognised Somerset locality makes this an appealing specimen for fossil collectors, geological displays and natural history collections.
Geological Setting
The Lower Jurassic forms an important part of the Jurassic fossil record and is especially well known for ammonites. During this period, marine environments covered areas that are now part of the British Isles, allowing ammonites and other marine organisms to be preserved within sedimentary rocks. The Lower Lias is a classic British Jurassic succession, and the Obtusum Zone represents a specific biostratigraphic interval within it. Biozones such as the Obtusum Zone help geologists compare fossil-bearing rocks and establish their relative position within the geological sequence.
Marston Magna, Somerset
Marston Magna, Somerset, is associated with the distinctive Marston Marble material named in this specimen’s identification. Locality information is an important part of fossil collecting because it connects a specimen with its geological setting and regional fossil history. The Somerset association gives this ammonite fossil added interest for collectors of British fossils and Jurassic geology.
Collector and Display Interest
Promicroceras marstonense is a named ammonite fossil suitable for a range of collecting interests, including ammonite taxonomy, Lower Jurassic geology, British fossil localities and stratigraphic study. Ammonites are commonly valued for their scientific importance, recognisable coiled forms and role in understanding ancient marine ecosystems. A multi-block presentation can be an attractive choice for a cabinet, educational display, geological collection or themed natural history arrangement.
The specimen can also provide a useful visual connection between fossil identification and geological context. Its locality, material description and stratigraphic placement offer several details for a collection label or display card, while the formal identification gives the piece a specific focus beyond a general ammonite classification.
Authenticity and Photograph Information
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.
Full sizing is shown in the photographs. Please review all listing images carefully for the specimen’s presentation and scale before purchasing. The photographs are intended to show the actual item supplied, including its arrangement as a multi-block fossil.
This Promicroceras marstonense ammonite fossil is an informative addition to collections focused on the Lower Jurassic, Lower Lias, Obtusum Zone, Marston Marble, Somerset geology or British ammonites. Its combination of named identification, locality association and stratigraphic context makes it suitable for collectors who appreciate fossils with clear geological information and regional significance.






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