Description
Fossil Identification
This listing features a Promicroceras marstonense fossil multi block from Marston Magna in Somerset, UK. The specimen is identified as an ammonite and is associated with the Marston Marble, the Obtusum Zone and the Lower Lias of the Lower Jurassic. Its named identification and geological context make it a compelling addition to fossil, ammonite, palaeontology and Jurassic geology collections.
The product name refers to Promicroceras marstonense Fossil Marston Magna Ammonites Multi Block. Promicroceras marstonense is a scientifically identified ammonite fossil, while the locality and stratigraphic information place it within the historically important Lower Jurassic fossil record of southern England. The Marston Magna locality is particularly relevant to collectors seeking British fossils with a documented Somerset connection.
Geological Context
The Lower Jurassic forms part of the early Jurassic period, when marine environments covered extensive areas of what is now the United Kingdom. Ammonites were extinct marine cephalopods related to modern nautiluses, and their rapidly changing forms are important in the study of geological time. Their fossils are commonly used by palaeontologists as biostratigraphic indicators, helping to correlate rock layers from different locations.
This fossil is associated with the Obtusum Zone, a recognised Jurassic biozone within the Lower Lias. Biozones provide a more precise geological framework than a broad period or epoch alone, allowing collectors and researchers to place a fossil within a particular interval of Earth history. The supplied identification also records the Marston Marble, linking the specimen to the named geological material and locality context of Marston Magna.
Collector Interest
A Promicroceras marstonense ammonite fossil offers interest on several levels: taxonomic identification, British geological locality, Lower Jurassic age and biozone placement. It can be displayed as a standalone palaeontology specimen, incorporated into an ammonite collection or used as an educational example when discussing Jurassic marine life, fossil preservation and biostratigraphy.
The multi block format gives this specimen a distinctive presentation within a collection. It is suitable for fossil collectors, students of geology, natural history enthusiasts, classroom displays and anyone interested in the Jurassic fossil record of Somerset. The locality, formation-related material and Obtusum Zone information provide useful context for cataloguing and display.
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.
Full sizing is shown in the photographs. Please use the photographs as the direct visual reference for the specimen’s presentation, scale and appearance. The supplied geological and identification details are included to support accurate collection labelling and informed display.






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