Promicroceras marstonense Fossil Ammonites Multi Block Marston Magna Lower Lias | Jurassic Marston Marble Obtusum Zone

Description

Fossil Identification

This listing presents a Promicroceras marstonense fossil in a multi-block format. It is identified as a fossil ammonite from Marston Magna in Somerset, UK. The specimen is associated with Marston Marble and is recorded from the Obtusum Zone of the Lower Lias, within the Lower Jurassic. The named identification makes this an appealing addition for collectors of ammonites, Jurassic fossils and British geology.

Promicroceras marstonense belongs to the wider ammonite fossil group. Ammonites were extinct marine cephalopods with coiled shells, and their fossil remains are widely used in the study of geological succession and Jurassic marine environments. Their appearances through successive rock units help collectors and geologists connect individual specimens with specific intervals of Earth history. This specimen’s recorded placement in the Obtusum Zone provides an important geological context for its identification.

Geological Context

The Lower Lias represents an important Lower Jurassic succession. The Lower Jurassic was a time when much of the region that is now the United Kingdom was covered by marine environments, allowing ammonites and other marine organisms to become preserved in sedimentary rocks. The Obtusum Zone is a recognised biostratigraphic interval within the Lower Lias, giving this fossil a more specific geological setting than a general Jurassic designation alone.

Marston Magna, Somerset, is the stated locality for this fossil. The association with Marston Marble connects the specimen with the local geological material and regional fossil heritage of Somerset. For collectors, locality and stratigraphic information are valuable because they provide provenance context and help place a fossil within the broader geological record.

Specimen Format and Display

The multi-block presentation offers a distinctive way to display this fossil ammonite. It can be incorporated into a collection focused on ammonites, Lower Jurassic fossils, Somerset geology or British fossil localities. It is also suitable for educational displays concerning biostratigraphy, Jurassic marine life and the use of ammonites in geological identification.

Full sizing is shown in the photographs. The images are intended to provide a clear view of the specimen and its presentation so that buyers can assess the supplied fossil before purchase. The photograph shows the actual specimen you will receive.

Authenticity and Certificate

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 part of its presentation. Together with the locality, geological interval and identification details, it provides useful supporting information for personal collections, educational use and fossil display.

Collector Interest

Promicroceras marstonense is an appealing choice for collectors seeking a specifically identified Lower Jurassic ammonite fossil rather than an undetermined ammonite fragment. Its connection to Marston Magna, Somerset, the Lower Lias, the Obtusum Zone and Marston Marble gives the piece several points of interest for anyone researching British fossils or building a geographically and stratigraphically organised collection. The specimen’s multi-block format further distinguishes it from a standard single-piece fossil display.