Stephanoceras Humphriesianum Ammonite Fossil Jurassic Dorset UK Specimen Inferior Oolite Bajocian Burton Bradstock with Certificate
£ 60.00
GENUINE STEPHANOCERAS HUMPHRIESIANUM AMMONITE FROM BURTON BRADSTOCKThis genuine Stephanoceras humphriesianum ammonite fossil comes from the
Inferior Oolite Formation at Burton Bradstock, Dorset, UK. Dating from the Middle Jurassic, Bajocian stage, this carefully chosen specimen is an excellent British Jurassic ammonite with strong geological, scientific, and display appeal. Burton Bradstock is a well-known fossil locality on the Dorset coast, and ammonites from this region are highly valued by collectors for their attractive preservation, classic marine origin, and clear locality information.The photograph shows the actual fossil specimen you will receive, allowing you to view the real shell form, surface detail, colour, matrix, preservation, and natural character before purchase. Full sizing can be seen in the photo, making it easy to assess the scale and suitability of the fossil for a cabinet, collector’s tray, desk display, educational collection, or natural history gift. FOSSIL TYPE, SPECIES AND CLASSIFICATIONStephanoceras humphriesianum is an extinct ammonite species belonging to the wider group of coiled marine cephalopod molluscs known as ammonites. Ammonites were 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. This family includes many classic Middle Jurassic ammonites known for rounded whorls, strong ribbing, robust coiling, and bold ornamental shell features. Stephanoceras humphriesianum is one of the best-recognised Bajocian ammonites, making this a desirable named species specimen rather than a general ammonite fossil. MORPHOLOGY AND NATURAL FEATURESStephanoceras ammonites are admired for their sculptural, three-dimensional shell form. They commonly display a planispiral coil, meaning the shell coils in a single flat plane, with rounded to inflated whorls. Many examples show strong primary ribs, branching secondary ribs, and raised nodes or tubercles, depending on preservation and growth stage.Like other ammonites, Stephanoceras had an internally chambered shell. The living animal occupied the outer body chamber, while the earlier chambers helped with buoyancy control as the animal moved through the Jurassic sea. The rib pattern, whorl shape, ornamentation, and coiling style are all important features used in ammonite identification.Natural features may include mineralised shell surface, visible whorl detail, sediment staining, matrix attachment, worn high points, partial preservation, or small irregularities from fossilisation. These details are part of the specimen’s authentic geological history and give each fossil its own individual display character. GEOLOGICAL AGE AND INFERIOR OOLITE FORMATIONThis fossil dates from the Bajocian stage of the Middle Jurassic. The Bajocian was an important interval in ammonite evolution, with many distinctive ammonite groups developing rapidly in shallow marine environments. Ammonites from this period are especially useful in biostratigraphy because their forms changed quickly through time and were widely distributed across Jurassic seas.The Inferior Oolite Formation is a famous British Jurassic rock unit known for fossil-rich limestones and oolitic sediments. Oolitic limestone is formed from tiny rounded carbonate grains called ooids, which developed in warm, shallow marine waters where currents moved carbonate particles across the sea floor. These sediments later hardened into rock, preserving the remains of ammonites, belemnites, bivalves, brachiopods, gastropods, echinoids, fish, and other marine organisms. BURTON BRADSTOCK, DORSET LOCALITYBurton Bradstock, near Bridport in Dorset, is part of the wider Jurassic Coast region and is well known for its fossil-bearing Middle Jurassic rocks. During the Bajocian, the area now forming the Dorset coast was covered by a shallow sea rich in marine life. Ammonites such as Stephanoceras humphriesianum lived in these waters alongside other cephalopods and invertebrates, becoming buried in carbonate-rich sediment after death and preserved over millions of years.Fossils from named localities such as Burton Bradstock are especially appealing to collectors because they carry strong provenance and a clear geological story. This specimen combines an identifiable species, recognised formation, Middle Jurassic age, and classic Dorset locality. GENUINE SPECIMEN WITH CERTIFICATE OF AUTHENTICITYThis Stephanoceras humphriesianum 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 Stephanoceras humphriesianum 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, Somerset, and the wider Jurassic Coast.With its named species identification, Bajocian age, Burton Bradstock locality, Inferior Oolite Formation origin, classic stephanoceratid shell form, and included Certificate of Authenticity, this fossil offers strong collecting, educational, and decorative appeal.
Inferior Oolite Formation at Burton Bradstock, Dorset, UK. Dating from the Middle Jurassic, Bajocian stage, this carefully chosen specimen is an excellent British Jurassic ammonite with strong geological, scientific, and display appeal. Burton Bradstock is a well-known fossil locality on the Dorset coast, and ammonites from this region are highly valued by collectors for their attractive preservation, classic marine origin, and clear locality information.The photograph shows the actual fossil specimen you will receive, allowing you to view the real shell form, surface detail, colour, matrix, preservation, and natural character before purchase. Full sizing can be seen in the photo, making it easy to assess the scale and suitability of the fossil for a cabinet, collector’s tray, desk display, educational collection, or natural history gift. FOSSIL TYPE, SPECIES AND CLASSIFICATIONStephanoceras humphriesianum is an extinct ammonite species belonging to the wider group of coiled marine cephalopod molluscs known as ammonites. Ammonites were 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. This family includes many classic Middle Jurassic ammonites known for rounded whorls, strong ribbing, robust coiling, and bold ornamental shell features. Stephanoceras humphriesianum is one of the best-recognised Bajocian ammonites, making this a desirable named species specimen rather than a general ammonite fossil. MORPHOLOGY AND NATURAL FEATURESStephanoceras ammonites are admired for their sculptural, three-dimensional shell form. They commonly display a planispiral coil, meaning the shell coils in a single flat plane, with rounded to inflated whorls. Many examples show strong primary ribs, branching secondary ribs, and raised nodes or tubercles, depending on preservation and growth stage.Like other ammonites, Stephanoceras had an internally chambered shell. The living animal occupied the outer body chamber, while the earlier chambers helped with buoyancy control as the animal moved through the Jurassic sea. The rib pattern, whorl shape, ornamentation, and coiling style are all important features used in ammonite identification.Natural features may include mineralised shell surface, visible whorl detail, sediment staining, matrix attachment, worn high points, partial preservation, or small irregularities from fossilisation. These details are part of the specimen’s authentic geological history and give each fossil its own individual display character. GEOLOGICAL AGE AND INFERIOR OOLITE FORMATIONThis fossil dates from the Bajocian stage of the Middle Jurassic. The Bajocian was an important interval in ammonite evolution, with many distinctive ammonite groups developing rapidly in shallow marine environments. Ammonites from this period are especially useful in biostratigraphy because their forms changed quickly through time and were widely distributed across Jurassic seas.The Inferior Oolite Formation is a famous British Jurassic rock unit known for fossil-rich limestones and oolitic sediments. Oolitic limestone is formed from tiny rounded carbonate grains called ooids, which developed in warm, shallow marine waters where currents moved carbonate particles across the sea floor. These sediments later hardened into rock, preserving the remains of ammonites, belemnites, bivalves, brachiopods, gastropods, echinoids, fish, and other marine organisms. BURTON BRADSTOCK, DORSET LOCALITYBurton Bradstock, near Bridport in Dorset, is part of the wider Jurassic Coast region and is well known for its fossil-bearing Middle Jurassic rocks. During the Bajocian, the area now forming the Dorset coast was covered by a shallow sea rich in marine life. Ammonites such as Stephanoceras humphriesianum lived in these waters alongside other cephalopods and invertebrates, becoming buried in carbonate-rich sediment after death and preserved over millions of years.Fossils from named localities such as Burton Bradstock are especially appealing to collectors because they carry strong provenance and a clear geological story. This specimen combines an identifiable species, recognised formation, Middle Jurassic age, and classic Dorset locality. GENUINE SPECIMEN WITH CERTIFICATE OF AUTHENTICITYThis Stephanoceras humphriesianum 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 Stephanoceras humphriesianum 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, Somerset, and the wider Jurassic Coast.With its named species identification, Bajocian age, Burton Bradstock locality, Inferior Oolite Formation origin, classic stephanoceratid shell form, and included Certificate of Authenticity, this fossil offers strong collecting, educational, and decorative appeal.
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