Rare Stephanoceras Densus Ammonite Fossil Jurassic Dorset UK Inferior Oolite Bajocian Blagdeni Subzone Red Hole Lane Sherborne with COA
£ 120.00
RARE STEPHANOCERAS DENSUS AMMONITE FROM RED HOLE LANE, SHERBORNEThis rare Stephanoceras densus ammonite fossil comes from the Inferior Oolite
Formation at Red Hole Lane, Sherborne, Dorset, UK. Dating from the Middle Jurassic, Bajocian stage, Blagdeni Subzone, this carefully chosen specimen is a highly collectible British ammonite with excellent geological, scientific, and display appeal. Fossils with a named species, precise formation, locality, stage, and subzone are especially desirable for collectors who value clear palaeontological provenance.The photograph shows the actual fossil specimen you will receive, allowing you to view the real preservation, shell form, surface detail, colour, matrix, and natural character before purchase. Full sizing can be seen in the photo, making it easy to assess scale and suitability for a fossil cabinet, collector’s tray, desk display, educational collection, or natural history gift. FOSSIL TYPE, SPECIES AND CLASSIFICATIONStephanoceras densus is an extinct ammonite species belonging to the wider group of coiled marine cephalopod molluscs known as ammonites. Ammonites lived in prehistoric seas and are related to modern squid, cuttlefish, octopus, and nautilus, although the ammonite lineage itself became extinct at the end of the Cretaceous Period.Stephanoceras is generally placed within the order Ammonitida, superfamily Stephanoceratoidea, and family Stephanoceratidae. Members of this group are classic Middle Jurassic ammonites, often recognised by their robust shell form, rounded whorls, strong ribbing, and bold ornamentation. Stephanoceras densus is particularly appealing as a named species from the Bajocian, giving the specimen a stronger scientific identity than a general ammonite fossil. MORPHOLOGY AND NATURAL FEATURESStephanoceras ammonites are known for their sculptural, three-dimensional shell shape. They commonly have a planispiral coil, with whorls arranged in a single flat spiral, and a rounded to inflated whorl profile. Many examples show strong primary ribs, branching secondary ribs, and raised ornamental features such as nodes or tubercles depending on preservation and growth stage.The species name densus reflects the compact, closely ornamented character associated with this ammonite form. The ribbing and whorl shape would have formed part of the original shell structure, while the living animal occupied the outer body chamber. Earlier chambers inside the shell helped with buoyancy control as the animal moved through the Jurassic sea.Natural features may include mineralised shell surface, visible whorl structure, matrix attachment, sediment staining, worn high points, partial preservation, or small irregularities from fossilisation. These details are part of the fossil’s authentic geological history and add to its individual display character. GEOLOGICAL AGE, ZONE AND SUBZONEThis fossil dates from the Bajocian stage of the Middle Jurassic and is associated with the Blagdeni Subzone. The Bajocian is an important interval in ammonite evolution, with many distinctive ammonite groups used for biostratigraphy. Because ammonites evolved rapidly and were widely distributed in ancient seas, they are valuable fossils for dating and correlating Jurassic rock layers.The Blagdeni Subzone gives this specimen a more refined stratigraphic context, making it especially appealing for collectors interested in ammonite succession, geological dating, and named fossil horizons. Subzone information adds scientific value by placing the fossil within a more precise part of the Middle Jurassic record. INFERIOR OOLITE FORMATION AND DORSET LOCALITYThe Inferior Oolite Formation is a famous British Jurassic rock unit known for fossil-rich limestones and oolitic sediments. Oolitic limestone forms from tiny rounded carbonate grains called ooids, which developed in warm, shallow marine waters where currents moved carbonate sediment across the sea floor.During the Bajocian, the area now forming Sherborne and wider Dorset was covered by a shallow Jurassic sea. This marine environment supported ammonites, belemnites, brachiopods, bivalves, gastropods, echinoids, fish, and many other organisms. After death, shells and hard parts could become buried in carbonate-rich sediment and preserved over millions of years.Red Hole Lane, Sherborne is a named Dorset locality, adding strong provenance and collector appeal. A Stephanoceras densus ammonite from this setting represents a direct connection to the ancient marine environments preserved within the Inferior Oolite of southern England. GENUINE SPECIMEN WITH CERTIFICATE OF AUTHENTICITYThis Stephanoceras densus ammonite fossil is a genuine specimen and includes a Certificate of Authenticity lifetime guarantee generic card. The certificate provides added confidence for fossil collectors, schools, gift buyers, and anyone building a verified natural history collection.The fossil shown in the photograph is the actual specimen supplied. This means the piece you see is the piece you will receive, complete with its own natural preservation, shell detail, matrix, colour, shape, and individual character. COLLECTING, DISPLAY AND EDUCATIONAL APPEALA rare Stephanoceras densus ammonite from the Inferior Oolite Formation is an excellent addition to a British Jurassic fossil collection. It pairs well with other Middle Jurassic ammonites, belemnites, brachiopods, bivalves, gastropods, echinoids, and marine fossils from Dorset and Somerset.With its rare named species identification, Bajocian age, Blagdeni Subzone, Red Hole Lane Sherborne locality, Inferior Oolite Formation origin, and included Certificate of Authenticity, this fossil offers strong collecting, educational, and decorative appeal.
Formation at Red Hole Lane, Sherborne, Dorset, UK. Dating from the Middle Jurassic, Bajocian stage, Blagdeni Subzone, this carefully chosen specimen is a highly collectible British ammonite with excellent geological, scientific, and display appeal. Fossils with a named species, precise formation, locality, stage, and subzone are especially desirable for collectors who value clear palaeontological provenance.The photograph shows the actual fossil specimen you will receive, allowing you to view the real preservation, shell form, surface detail, colour, matrix, and natural character before purchase. Full sizing can be seen in the photo, making it easy to assess scale and suitability for a fossil cabinet, collector’s tray, desk display, educational collection, or natural history gift. FOSSIL TYPE, SPECIES AND CLASSIFICATIONStephanoceras densus is an extinct ammonite species belonging to the wider group of coiled marine cephalopod molluscs known as ammonites. Ammonites lived in prehistoric seas and are related to modern squid, cuttlefish, octopus, and nautilus, although the ammonite lineage itself became extinct at the end of the Cretaceous Period.Stephanoceras is generally placed within the order Ammonitida, superfamily Stephanoceratoidea, and family Stephanoceratidae. Members of this group are classic Middle Jurassic ammonites, often recognised by their robust shell form, rounded whorls, strong ribbing, and bold ornamentation. Stephanoceras densus is particularly appealing as a named species from the Bajocian, giving the specimen a stronger scientific identity than a general ammonite fossil. MORPHOLOGY AND NATURAL FEATURESStephanoceras ammonites are known for their sculptural, three-dimensional shell shape. They commonly have a planispiral coil, with whorls arranged in a single flat spiral, and a rounded to inflated whorl profile. Many examples show strong primary ribs, branching secondary ribs, and raised ornamental features such as nodes or tubercles depending on preservation and growth stage.The species name densus reflects the compact, closely ornamented character associated with this ammonite form. The ribbing and whorl shape would have formed part of the original shell structure, while the living animal occupied the outer body chamber. Earlier chambers inside the shell helped with buoyancy control as the animal moved through the Jurassic sea.Natural features may include mineralised shell surface, visible whorl structure, matrix attachment, sediment staining, worn high points, partial preservation, or small irregularities from fossilisation. These details are part of the fossil’s authentic geological history and add to its individual display character. GEOLOGICAL AGE, ZONE AND SUBZONEThis fossil dates from the Bajocian stage of the Middle Jurassic and is associated with the Blagdeni Subzone. The Bajocian is an important interval in ammonite evolution, with many distinctive ammonite groups used for biostratigraphy. Because ammonites evolved rapidly and were widely distributed in ancient seas, they are valuable fossils for dating and correlating Jurassic rock layers.The Blagdeni Subzone gives this specimen a more refined stratigraphic context, making it especially appealing for collectors interested in ammonite succession, geological dating, and named fossil horizons. Subzone information adds scientific value by placing the fossil within a more precise part of the Middle Jurassic record. INFERIOR OOLITE FORMATION AND DORSET LOCALITYThe Inferior Oolite Formation is a famous British Jurassic rock unit known for fossil-rich limestones and oolitic sediments. Oolitic limestone forms from tiny rounded carbonate grains called ooids, which developed in warm, shallow marine waters where currents moved carbonate sediment across the sea floor.During the Bajocian, the area now forming Sherborne and wider Dorset was covered by a shallow Jurassic sea. This marine environment supported ammonites, belemnites, brachiopods, bivalves, gastropods, echinoids, fish, and many other organisms. After death, shells and hard parts could become buried in carbonate-rich sediment and preserved over millions of years.Red Hole Lane, Sherborne is a named Dorset locality, adding strong provenance and collector appeal. A Stephanoceras densus ammonite from this setting represents a direct connection to the ancient marine environments preserved within the Inferior Oolite of southern England. GENUINE SPECIMEN WITH CERTIFICATE OF AUTHENTICITYThis Stephanoceras densus ammonite fossil is a genuine specimen and includes a Certificate of Authenticity lifetime guarantee generic card. The certificate provides added confidence for fossil collectors, schools, gift buyers, and anyone building a verified natural history collection.The fossil shown in the photograph is the actual specimen supplied. This means the piece you see is the piece you will receive, complete with its own natural preservation, shell detail, matrix, colour, shape, and individual character. COLLECTING, DISPLAY AND EDUCATIONAL APPEALA rare Stephanoceras densus ammonite from the Inferior Oolite Formation is an excellent addition to a British Jurassic fossil collection. It pairs well with other Middle Jurassic ammonites, belemnites, brachiopods, bivalves, gastropods, echinoids, and marine fossils from Dorset and Somerset.With its rare named species identification, Bajocian age, Blagdeni Subzone, Red Hole Lane Sherborne locality, Inferior Oolite Formation origin, and included Certificate of Authenticity, this fossil offers strong collecting, educational, and decorative appeal.
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