Rare Metophioceras conybeari Ammonite Fossil Jurassic Radstock UK Genuine Authentic COA

Description

Authentic Jurassic Fossil from Radstock, UK

This rare Metophioceras conybeari ammonite fossil is an exceptional specimen from the Upper Sinemurian stage of the Early Jurassic, discovered in Radstock, United Kingdom. Carefully selected for its clear preservation and scientific value, it represents an ancient marine cephalopod that lived over 190 million years ago. The photographs provided show the exact fossil you will receive, with a 1 cm scale cube for accurate sizing. Every fossil is 100% genuine and supplied with a Certificate of Authenticity.

Geological Age and Provenance

The fossil originates from the Upper Sinemurian stage of the Lower Jurassic, dating to approximately 197–190 million years ago. During this time, the Radstock area of Somerset formed part of a shallow marine environment dominated by silts and mudstones. These sediments created the perfect conditions for fossilisation, capturing ammonites and other marine organisms in extraordinary detail. Fossils from this period provide vital insights into the early diversification of ammonites after the end-Triassic extinction, a time of evolutionary radiation that reshaped the world’s oceans.

Species Identification and Classification

Metophioceras conybeari is a member of the class Cephalopoda, order Ammonitida, and belongs to the family Echioceratidae. Ammonites of this genus are characterised by their ribbed, planispiral shells and relatively compressed whorls. The specific epithet “conybeari” commemorates the work of early paleontologists who studied Jurassic cephalopods in Britain. As an ammonite of the Sinemurian stage, it forms part of an important evolutionary lineage that would diversify further throughout the Jurassic, leaving a rich fossil record across Europe.

Morphology and Notable Traits

The specimen displays the diagnostic features of Metophioceras conybeari, including pronounced ribbing that extends symmetrically across the flanks of the whorl. The ribs are relatively sharp and regularly spaced, giving the fossil a striking appearance. The coiling is planispiral, and the shell maintains a compressed profile, traits typical of this genus. These features not only contribute to its aesthetic beauty but also allow paleontologists to use this ammonite in identifying specific horizons within the Sinemurian.

Scientific and Stratigraphic Importance

Metophioceras conybeari is a significant ammonite in Jurassic stratigraphy, as it is associated with well-defined Sinemurian ammonite biozones. Its presence in Radstock’s fossiliferous layers helps geologists date and correlate strata with high accuracy. Ammonites such as this are key index fossils, and their detailed preservation allows for reconstruction of paleoenvironments and evolutionary histories. Collectors value these fossils not only for their beauty but also for their importance in documenting the development of marine ecosystems during the Early Jurassic.

Condition and Presentation

The fossil has been professionally cleaned and prepared to enhance its natural form while preserving its authenticity. The ribbing, shell curvature, and fine structural details are clearly visible, making it both a scientifically valuable and visually striking piece. This is a unique, one-of-a-kind specimen—not a reproduction or cast. The photographs show the actual fossil you will receive, ensuring transparency and buyer confidence.

Guarantee of Authenticity

All of our fossils are guaranteed 100% genuine, responsibly sourced, and scientifically identified. Each fossil is accompanied by a Certificate of Authenticity for your records. This rare Metophioceras conybeari ammonite fossil from Radstock, Somerset, is an outstanding example of Sinemurian ammonites and an ideal addition for collectors, educators, and natural history enthusiasts.