Description
Fossil Identification
This listing features a Promicroceras marstonense fossil presented as a multi-block ammonite specimen. The specimen is identified as coming from Marston Marble, within the Obtusum Zone of the Lower Lias, part of the Lower Jurassic. Its stated locality is Marston Magna, Somerset, UK, making it a noteworthy British ammonite fossil for collectors interested in Jurassic palaeontology and the geology of southern England.
Geological Context
The Lower Jurassic is an important interval in the geological record, preserving abundant marine fossils from a time when much of what is now Europe was covered by shallow seas. The Lower Lias is a traditional geological term associated with Lower Jurassic strata, particularly those known for their rich marine fossil content. Ammonites from these rocks are valued not only for their attractive coiled forms but also for their usefulness in studying geological succession.
The Obtusum Zone is a biostratigraphic interval within the Lower Jurassic succession. Biozones allow palaeontologists and geologists to compare rock layers and fossil assemblages from different locations. A specimen identified to this zone therefore has interest beyond its appearance, linking it to a defined interval in Jurassic geological time.
Ammonite Collector Interest
Ammonites were extinct marine cephalopods with coiled shells. Their fossilised shells are among the most recognisable forms in the palaeontological record, and they remain popular with fossil collectors because of their scientific importance, natural variation and connection with ancient marine environments. Promicroceras marstonense provides a specific identification for this ammonite material, while the Marston Marble and Obtusum Zone details add useful geological context for display, study and collection cataloguing.
The multi-block format gives this item a distinctive presentation as a grouped fossil piece rather than a single isolated specimen. It can be displayed as part of an ammonite collection, used as an educational example of Lower Jurassic fossil material, or appreciated as a piece of Somerset geological history. The supplied locality of Marston Magna, Somerset, UK is especially relevant to collectors building collections focused on British Jurassic fossils.
Specimen and Sizing
The photograph shows the actual specimen you will receive.
Full sizing is shown in the photographs.
Please review the photographs carefully for the overall arrangement and presentation of the multi-block fossil. The images are intended to provide the clearest visual reference for the specimen supplied with this listing.
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 a generic lifetime-guarantee card. Together with the stated identification and geological information, it provides useful documentation for collectors who wish to record the specimen as Promicroceras marstonense from Marston Marble, the Obtusum Zone and the Lower Lias of Marston Magna, Somerset, UK.
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