Stephanoceras Humphriesianum Ammonite Fossil Jurassic France Bajocian Specimen Calvados Normandy Genuine Cephalopod with Certificate
£ 60.00
GENUINE STEPHANOCERAS HUMPHRIESIANUM AMMONITE FROM NORMANDY, FRANCEThis genuine Stephanoceras humphriesianum ammonite fossil comes from Calvados,
Normandy, France, and dates from the Middle Jurassic, Bajocian stage. Carefully chosen for its natural character, scientific interest, and strong display appeal, this fossil represents a classic Jurassic ammonite from a historically important European fossil region. With its named species identification and clear geological age, it is an excellent specimen for fossil collectors, ammonite enthusiasts, educational collections, natural history displays, and geology-themed gifts.The photograph shows the actual fossil specimen you will receive, allowing you to view the real preservation, shell form, surface detail, colour, matrix association, and overall character before purchase. Full sizing can be seen in the photo, making it easy to assess the scale and suitability of the piece for a fossil cabinet, collector’s tray, desk display, school collection, or display stand. 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 well-known Middle Jurassic ammonites recognised for their robust shells, rounded whorls, strong ribbing, and bold ornamental features. Stephanoceras humphriesianum is one of the classic Bajocian ammonites and is especially valued by collectors because it provides both an attractive fossil form and useful stratigraphic context. MORPHOLOGY AND NATURAL FEATURESStephanoceras ammonites are known for their sculptural, three-dimensional shell form. They typically display a planispiral coil, meaning the shell coils in a single flat plane, with rounded to inflated whorls. Many specimens show strong primary ribs, branching secondary ribs, and raised ornamental features such as nodes or tubercles depending on preservation and growth stage.The shell of the living ammonite was internally chambered. The animal occupied the outer body chamber, while the earlier chambers helped with buoyancy control as it moved through the Jurassic sea. The rib pattern, whorl shape, degree of inflation, and ornamental detail are all important features used in ammonite identification.Natural features may include mineralised shell surface, exposed whorl structure, matrix attachment, sediment staining, worn high points, partial preservation, or small irregularities caused by fossilisation. These details are part of the fossil’s authentic geological history and give each specimen its own individual display character. GEOLOGICAL AGE AND BAJOCIAN SETTINGThis 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 stage are highly useful in biostratigraphy because their shells evolved quickly and were widely distributed across Jurassic seas.Stephanoceras humphriesianum is closely associated with Bajocian ammonite faunas and is a recognised name among collectors of Middle Jurassic cephalopods. Fossils of this type help represent the changing marine ecosystems of the Jurassic, when ammonites, belemnites, bivalves, brachiopods, gastropods, echinoids, fish, and marine reptiles inhabited warm ancient seas. CALVADOS, NORMANDY LOCALITYCalvados in Normandy, France, is a classic region for Jurassic fossils, particularly marine invertebrates such as ammonites and belemnites. During the Middle Jurassic, this part of western Europe was covered by shallow marine environments where carbonate-rich sediments accumulated and preserved the remains of shelled animals.A Stephanoceras humphriesianum ammonite from Normandy carries strong locality interest, especially for collectors who appreciate European Jurassic fossils with defined provenance. The fossil links directly to the ancient marine settings that once covered the region, preserving a natural record of life from millions of years ago. 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, form, and individual character. COLLECTING, DISPLAY AND EDUCATIONAL APPEALA Stephanoceras humphriesianum ammonite from the Middle Jurassic of Normandy is an excellent addition to a fossil collection. It pairs well with other Jurassic ammonites, belemnites, brachiopods, bivalves, gastropods, echinoids, and marine fossils from France, Dorset, Somerset, and other European fossil localities.With its named species identification, Bajocian age, Calvados Normandy provenance, classic stephanoceratid shell form, and included Certificate of Authenticity, this fossil offers strong collecting, educational, and decorative appeal.
Normandy, France, and dates from the Middle Jurassic, Bajocian stage. Carefully chosen for its natural character, scientific interest, and strong display appeal, this fossil represents a classic Jurassic ammonite from a historically important European fossil region. With its named species identification and clear geological age, it is an excellent specimen for fossil collectors, ammonite enthusiasts, educational collections, natural history displays, and geology-themed gifts.The photograph shows the actual fossil specimen you will receive, allowing you to view the real preservation, shell form, surface detail, colour, matrix association, and overall character before purchase. Full sizing can be seen in the photo, making it easy to assess the scale and suitability of the piece for a fossil cabinet, collector’s tray, desk display, school collection, or display stand. 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 well-known Middle Jurassic ammonites recognised for their robust shells, rounded whorls, strong ribbing, and bold ornamental features. Stephanoceras humphriesianum is one of the classic Bajocian ammonites and is especially valued by collectors because it provides both an attractive fossil form and useful stratigraphic context. MORPHOLOGY AND NATURAL FEATURESStephanoceras ammonites are known for their sculptural, three-dimensional shell form. They typically display a planispiral coil, meaning the shell coils in a single flat plane, with rounded to inflated whorls. Many specimens show strong primary ribs, branching secondary ribs, and raised ornamental features such as nodes or tubercles depending on preservation and growth stage.The shell of the living ammonite was internally chambered. The animal occupied the outer body chamber, while the earlier chambers helped with buoyancy control as it moved through the Jurassic sea. The rib pattern, whorl shape, degree of inflation, and ornamental detail are all important features used in ammonite identification.Natural features may include mineralised shell surface, exposed whorl structure, matrix attachment, sediment staining, worn high points, partial preservation, or small irregularities caused by fossilisation. These details are part of the fossil’s authentic geological history and give each specimen its own individual display character. GEOLOGICAL AGE AND BAJOCIAN SETTINGThis 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 stage are highly useful in biostratigraphy because their shells evolved quickly and were widely distributed across Jurassic seas.Stephanoceras humphriesianum is closely associated with Bajocian ammonite faunas and is a recognised name among collectors of Middle Jurassic cephalopods. Fossils of this type help represent the changing marine ecosystems of the Jurassic, when ammonites, belemnites, bivalves, brachiopods, gastropods, echinoids, fish, and marine reptiles inhabited warm ancient seas. CALVADOS, NORMANDY LOCALITYCalvados in Normandy, France, is a classic region for Jurassic fossils, particularly marine invertebrates such as ammonites and belemnites. During the Middle Jurassic, this part of western Europe was covered by shallow marine environments where carbonate-rich sediments accumulated and preserved the remains of shelled animals.A Stephanoceras humphriesianum ammonite from Normandy carries strong locality interest, especially for collectors who appreciate European Jurassic fossils with defined provenance. The fossil links directly to the ancient marine settings that once covered the region, preserving a natural record of life from millions of years ago. 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, form, and individual character. COLLECTING, DISPLAY AND EDUCATIONAL APPEALA Stephanoceras humphriesianum ammonite from the Middle Jurassic of Normandy is an excellent addition to a fossil collection. It pairs well with other Jurassic ammonites, belemnites, brachiopods, bivalves, gastropods, echinoids, and marine fossils from France, Dorset, Somerset, and other European fossil localities.With its named species identification, Bajocian age, Calvados Normandy provenance, classic stephanoceratid shell form, and included Certificate of Authenticity, this fossil offers strong collecting, educational, and decorative appeal.
