Chondroceras wrighti Ammonite Fossil Dorset UK Bajocian with COA

Description

Genuine Chondroceras Ammonite Fossil

This genuine ammonite fossil is identified as Chondroceras wrighti and comes from the Inferior Oolite Group at Frogden Quarry near Sherborne, Dorset, UK. Dating to the Bajocian Stage of the Middle Jurassic, it is a carefully selected British fossil with useful species, formation-group, age, and locality information. The photographs show the exact specimen offered for sale, so the ammonite pictured is the fossil you will receive.

Chondroceras wrighti represents an extinct marine cephalopod that lived in Jurassic seas. Its coiled shell grew as the animal added progressively larger chambers around the outer whorl. The ammonite lived in the final body chamber, while the older sealed chambers played a role in buoyancy control. Ammonites were relatives of living cephalopods such as squid, cuttlefish, and nautiluses, although they belonged to their own extinct branch.

Bajocian Age and Inferior Oolite Geology

The Bajocian is a stage within the Middle Jurassic Period. During this interval, shallow marine environments covered large areas of what is now southern Britain. Sediment accumulated on the sea floor and preserved the shells of ammonites and other marine organisms. Over geological time, burial, compaction, and mineralisation transformed these deposits into rock.

The Inferior Oolite Group is an important Jurassic rock succession in southern England. Its limestones and associated beds preserve a varied marine fauna and record changes in sea level, sedimentation, and biological communities. The term oolite refers to rocks that commonly contain small rounded carbonate grains formed in moving shallow water, although the group also includes other sedimentary lithologies. A fossil with this geological context provides a tangible link to the ancient environment represented by the Dorset rocks.

Frogden Quarry, Sherborne, Dorset

Frogden Quarry is a recognised fossil locality near Sherborne in Dorset. Specimens from a documented locality are especially useful to collectors because provenance connects the fossil to a specific geological succession rather than presenting it as an unidentified decorative object. This example can complement a collection arranged by ammonite genus, Jurassic stage, British county, or classic UK fossil site.

The locality lies within a region renowned for Jurassic geology. The shell’s natural colour, matrix, and surface texture reflect burial within ancient marine sediment. Any small breaks, mineral veins, areas of matrix, or changes in preservation are genuine features of the specimen’s geological history.

Shell Form and Collectable Detail

Chondroceras ammonites are appreciated for their compact coiling and pronounced ornamentation. Examine the photographs for the visible whorls, ribbing, shell outline, and preserved surface features on this individual piece. Rib pattern, whorl proportions, and the form of the outer shell are among the morphological details used when comparing ammonites.

Every fossil preserves a different combination of shell and surrounding rock. The multiple photographs provide useful views of the actual specimen and show its condition, proportions, and natural character more clearly than a generic description. This documented Chondroceras wrighti makes an engaging example for studying ammonite growth, Jurassic palaeontology, fossil preservation, and ancient marine ecosystems.

Exact Specimen, Size and Authenticity

Full sizing is shown in the photographs, which provide the best scale information for this individual fossil. The images are not stock photographs and do not represent a similar piece. They show the exact Chondroceras wrighti ammonite that will be supplied.

This is a genuine fossil specimen and includes a generic Certificate of Authenticity card with a lifetime guarantee. It has been carefully chosen for its identifiable ammonite form, Bajocian age, Inferior Oolite provenance, and Dorset locality. It makes a distinctive addition to a cabinet collection, educational display, office, study, or gift for anyone interested in authentic British Jurassic fossils.