Stephanoceras Orbignyi Ammonite Fossil Bajocian Dorset UK Genuine COA
£ 36.00
Genuine Stephanoceras orbignyi Ammonite FossilThis listing is for a genuine Stephanoceras orbignyi ammonite fossil from the
Inferior Oolite Group, dating to the Middle Jurassic, Bajocian stage, specifically the Romani Subzone. This specimen comes from Red Hole Lane, Sherborne, Dorset, UK, a classic British Jurassic fossil locality. The fossil is a carefully chosen piece, and the photo shows the actual specimen you will receive, making it ideal for collectors who want to view the exact ammonite before purchase.Middle Jurassic Age and Inferior Oolite GeologyThe Inferior Oolite Group is one of the most famous Middle Jurassic rock units in southern England. It was deposited during the Bajocian stage, approximately 170 to 168 million years ago, when warm shallow seas covered much of what is now Dorset and surrounding areas. These ancient marine environments supported a rich diversity of ammonites, belemnites, bivalves, brachiopods, echinoids, crinoids, gastropods, and other sea life.The rocks of the Inferior Oolite Group often consist of fossiliferous limestone, marl, and iron-rich sedimentary layers formed in shallow marine settings. These deposits preserve an important record of Jurassic sea life and are especially valued for their ammonite faunas, which are used by geologists to divide the rocks into precise zones and subzones.Romani Subzone Fossil from Sherborne, DorsetThis specimen is from the Romani Subzone, part of the detailed Bajocian ammonite biostratigraphy used in British Jurassic geology. Ammonites are particularly useful index fossils because they evolved quickly and were widely distributed in ancient seas. This makes named ammonite species such as Stephanoceras orbignyi especially desirable for collectors who appreciate fossils with accurate locality and stratigraphic information.Red Hole Lane near Sherborne, Dorset, is associated with Middle Jurassic Inferior Oolite exposures and has produced well-known ammonite material. Fossils from this area are collectable not only for their age and preservation, but also for their connection to a classic UK Jurassic fossil region.Fossil Type and SpeciesStephanoceras orbignyi is an extinct ammonite species. Ammonites were marine cephalopods related to modern squid, octopus, cuttlefish, and nautilus. They lived inside coiled chambered shells, using the chambers for buoyancy control while the living animal occupied the outer body chamber.The genus Stephanoceras is known for its robust coiled shell form and strong ornamentation. Many specimens display pronounced ribs, rounded whorls, and tuberculate features, giving them a bold and textured appearance. These features make Stephanoceras ammonites visually appealing and scientifically interesting, as shell shape, ribbing, whorl section, and ornamentation are important characteristics used in ammonite identification.Scientific Classification and Collector InterestStephanoceras belongs to the ammonite order Ammonitida and is associated with the superfamily Stephanoceratoidea. The Stephanoceratidae are a significant Jurassic ammonite family, with forms that are especially characteristic of Bajocian marine deposits. The species name orbignyi honours the tradition of nineteenth-century palaeontology, when many ammonite species were described and named in connection with the pioneering work of early fossil researchers.This ammonite is a strong choice for collectors of British fossils, Dorset fossils, Jurassic ammonites, Inferior Oolite fossils, and named cephalopod specimens. Its precise geological information gives it added educational and display value, particularly for anyone building a collection arranged by age, formation, locality, or ammonite zone.Display and Educational UseThis Stephanoceras orbignyi ammonite fossil would display beautifully in a fossil cabinet, study tray, geology collection, classroom resource, museum-style display, or natural history collection. It is suitable for both new fossil collectors and experienced enthusiasts seeking a well-localised Middle Jurassic ammonite from the UK.Full sizing can be seen in the photo, so please refer to the image for exact scale and dimensions. As a natural fossil specimen, variations in colour, texture, matrix, surface detail, and preservation are part of its individual character.Authenticity and CertificateThis fossil is a genuine specimen and includes a Certificate of Authenticity lifetime guarantee generic card. The photograph shows the actual Stephanoceras orbignyi ammonite you will receive, allowing you to purchase with confidence and view the fossil’s condition, shape, detail, and natural preservation before ordering.
Inferior Oolite Group, dating to the Middle Jurassic, Bajocian stage, specifically the Romani Subzone. This specimen comes from Red Hole Lane, Sherborne, Dorset, UK, a classic British Jurassic fossil locality. The fossil is a carefully chosen piece, and the photo shows the actual specimen you will receive, making it ideal for collectors who want to view the exact ammonite before purchase.Middle Jurassic Age and Inferior Oolite GeologyThe Inferior Oolite Group is one of the most famous Middle Jurassic rock units in southern England. It was deposited during the Bajocian stage, approximately 170 to 168 million years ago, when warm shallow seas covered much of what is now Dorset and surrounding areas. These ancient marine environments supported a rich diversity of ammonites, belemnites, bivalves, brachiopods, echinoids, crinoids, gastropods, and other sea life.The rocks of the Inferior Oolite Group often consist of fossiliferous limestone, marl, and iron-rich sedimentary layers formed in shallow marine settings. These deposits preserve an important record of Jurassic sea life and are especially valued for their ammonite faunas, which are used by geologists to divide the rocks into precise zones and subzones.Romani Subzone Fossil from Sherborne, DorsetThis specimen is from the Romani Subzone, part of the detailed Bajocian ammonite biostratigraphy used in British Jurassic geology. Ammonites are particularly useful index fossils because they evolved quickly and were widely distributed in ancient seas. This makes named ammonite species such as Stephanoceras orbignyi especially desirable for collectors who appreciate fossils with accurate locality and stratigraphic information.Red Hole Lane near Sherborne, Dorset, is associated with Middle Jurassic Inferior Oolite exposures and has produced well-known ammonite material. Fossils from this area are collectable not only for their age and preservation, but also for their connection to a classic UK Jurassic fossil region.Fossil Type and SpeciesStephanoceras orbignyi is an extinct ammonite species. Ammonites were marine cephalopods related to modern squid, octopus, cuttlefish, and nautilus. They lived inside coiled chambered shells, using the chambers for buoyancy control while the living animal occupied the outer body chamber.The genus Stephanoceras is known for its robust coiled shell form and strong ornamentation. Many specimens display pronounced ribs, rounded whorls, and tuberculate features, giving them a bold and textured appearance. These features make Stephanoceras ammonites visually appealing and scientifically interesting, as shell shape, ribbing, whorl section, and ornamentation are important characteristics used in ammonite identification.Scientific Classification and Collector InterestStephanoceras belongs to the ammonite order Ammonitida and is associated with the superfamily Stephanoceratoidea. The Stephanoceratidae are a significant Jurassic ammonite family, with forms that are especially characteristic of Bajocian marine deposits. The species name orbignyi honours the tradition of nineteenth-century palaeontology, when many ammonite species were described and named in connection with the pioneering work of early fossil researchers.This ammonite is a strong choice for collectors of British fossils, Dorset fossils, Jurassic ammonites, Inferior Oolite fossils, and named cephalopod specimens. Its precise geological information gives it added educational and display value, particularly for anyone building a collection arranged by age, formation, locality, or ammonite zone.Display and Educational UseThis Stephanoceras orbignyi ammonite fossil would display beautifully in a fossil cabinet, study tray, geology collection, classroom resource, museum-style display, or natural history collection. It is suitable for both new fossil collectors and experienced enthusiasts seeking a well-localised Middle Jurassic ammonite from the UK.Full sizing can be seen in the photo, so please refer to the image for exact scale and dimensions. As a natural fossil specimen, variations in colour, texture, matrix, surface detail, and preservation are part of its individual character.Authenticity and CertificateThis fossil is a genuine specimen and includes a Certificate of Authenticity lifetime guarantee generic card. The photograph shows the actual Stephanoceras orbignyi ammonite you will receive, allowing you to purchase with confidence and view the fossil’s condition, shape, detail, and natural preservation before ordering.
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