Description
Promicroceras marstonense Fossil
This genuine Promicroceras marstonense fossil is presented as a multi-block ammonite specimen from Marston Magna, Somerset, UK. It is identified with the Marston Marble, the Obtusum Zone and the Lower Lias of the Lower Jurassic, making it an appealing addition to a fossil collection focused on British geology, Jurassic palaeontology or ammonites.
Geological Identification
Promicroceras marstonense is an ammonite identification associated with the Lower Jurassic. The specimen is listed from the Obtusum Zone of the Lower Lias and the Marston Marble. These geological terms provide useful context for collectors, linking the fossil to a defined Jurassic stratigraphic interval rather than presenting it simply as an unidentified ammonite.
Ammonites were extinct marine cephalopods with coiled shells. Their fossils are especially valued in geology because ammonite forms can help correlate sedimentary rocks across different locations and geological sections. The presence of a named zone, such as the Obtusum Zone, is particularly relevant to collectors interested in biostratigraphy and the way fossil assemblages are used to understand the relative sequence of rocks.
Marston Magna Somerset Specimen
This fossil is associated with Marston Magna in Somerset, UK. The Marston Marble and Lower Lias setting gives the specimen a clear British Jurassic context and makes it suitable for display alongside other Lower Jurassic fossils, ammonites and stratigraphically documented specimens. Its multi-block format offers a distinctive presentation for a cabinet, study collection, educational display or geology-themed interior.
The specimen may be of interest to collectors researching Jurassic ammonites, Lower Lias fossils, British fossil localities and the geological history of Somerset. It can also provide a useful visual starting point for learning about ammonite morphology, fossil preservation and the use of zonal classifications in geology.
Display and Sizing
The photograph shows the actual specimen you will receive.
Full sizing is shown in the photographs.
Please review the images carefully for the specimen’s presentation and overall appearance before purchase. The multi-block format makes this an attractive choice for collectors who enjoy fossils with a documented identification and a specific geological association.
Authenticity
This Fossil is a genuine specimen and Includes a Certificate of Authenticity lifetime guarantee generic card.
The certificate wording is supplied with the fossil as stated above. This Promicroceras marstonense ammonite specimen is suitable for fossil collectors, Jurassic geology enthusiasts, educational displays, natural history cabinets and anyone interested in the fossil record of Somerset and the Lower Lias.






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