Description
Iridescent Caloceras johnstoni Ammonite Fossil
This genuine fossil specimen is identified as Caloceras johnstoni, an ammonite associated with the Blue Lias and Jurassic geology. Its iridescent appearance adds visual interest to the naturally preserved fossil surface, making it an appealing choice for fossil collectors, geological displays and anyone interested in Jurassic marine life.
Identification and Geological Context
Caloceras johnstoni is an ammonite fossil from the Jurassic period. Ammonites were extinct marine cephalopods with coiled shells, and their fossilised forms are highly valued for their scientific importance, distinctive morphology and place in the geological record. The Blue Lias is well known for Jurassic fossil material, providing an important context for ammonites and other marine organisms preserved from this period.
This specimen is associated with Watchet, Somerset, UK. The combination of the Caloceras johnstoni identification, Blue Lias association and Jurassic age makes this a particularly interesting piece for collectors who focus on ammonites, British fossils or Jurassic palaeontology. The fossil can be displayed as a standalone geological specimen or incorporated into a wider collection of ammonites and UK fossil material.
Collector Display and Educational Interest
The characteristic ammonite form offers an accessible way to explore the history of marine life and the evolution of cephalopods. Fossils such as this can be used as conversation pieces, educational display items or additions to a specialist collection. Its iridescent quality gives the specimen added decorative appeal while retaining a strong connection to natural history and geology.
The photograph shows the actual specimen you will receive. Full sizing is shown in the photographs. Please review the photographs carefully for the specimen’s shape, visible details, surface character and overall presentation before purchasing. The images are intended to provide a direct view of this individual fossil rather than a representative example.
Preparation and Collection
Your specimen was discovered by our own team members, Alister and Alison, and has been cleaned, prepped and treated by Alison. This preparation helps present the fossil for examination and display while retaining the character of the collected specimen.
Certificate of Authenticity
This Fossil is a genuine specimen and Includes a Certificate of Authenticity lifetime guarantee generic card.
Suitable for a fossil cabinet, geology classroom, natural history display or ammonite collection, this Caloceras johnstoni fossil brings together Jurassic identification, Blue Lias context, British locality interest and an attractive iridescent presentation. It is a distinctive geological object for collectors who appreciate genuine fossil material and the story preserved within the Jurassic rock record.








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