Normannites orbignyi Ammonite Fossil Bajocian Dorset UK Genuine Jurassic COA Inferior Oolite Specimen
£ 18.00
GENUINE NORMANNITES ORBIGNYI AMMONITE FOSSILThis is a genuine Normannites orbignyi ammonite fossil from the Inferior Oolite
Formation, Middle Jurassic, Bajocian Stage, Dorset, UK. This carefully chosen specimen is an excellent fossil for collectors of British ammonites, Dorset fossils, Jurassic marine life, extinct cephalopods, natural history specimens, and well-labelled palaeontological display pieces.The photograph shows the actual fossil you will receive, allowing you to view the individual preservation, shell form, surface detail, colour, matrix, and natural character of this specific specimen before purchase. Full sizing details can be seen in the photo. This fossil includes a Certificate of Authenticity lifetime guarantee generic card, confirming it as a genuine specimen. FOSSIL TYPE, SPECIES AND SCIENTIFIC CLASSIFICATIONNormannites orbignyi is an ammonite, an extinct marine cephalopod belonging to the order Ammonitida. Ammonites were related to modern squid, cuttlefish, octopus, and nautilus, and are among the most recognisable fossils of the Jurassic Period. Their coiled shells, chambered structure, varied ribbing, and rapid evolutionary changes make them highly valued by fossil collectors and important in palaeontology.This specimen belongs to the genus Normannites and the species Normannites orbignyi. The genus is associated with the family Stephanoceratidae, a notable group of Middle Jurassic ammonites often recognised for compact coiling, rounded whorls, strong ribbing, and a bold sculptural appearance. Stephanoceratid ammonites are especially important in Bajocian biostratigraphy, where their changing shell forms help geologists compare and date marine sedimentary rocks. GEOLOGICAL AGE AND INFERIOR OOLITE FORMATIONThis fossil comes from the Inferior Oolite Formation, a classic British Middle Jurassic rock unit known for its fossiliferous limestones, sandy limestones, iron-rich horizons, and diverse marine fossil assemblages. The specimen dates to the Bajocian Stage of the Middle Jurassic, approximately 170 to 168 million years ago.During the Bajocian, southern Britain was covered by warm, shallow marine waters. These ancient seas supported ammonites, belemnites, bivalves, brachiopods, gastropods, echinoids, corals, and other marine organisms. Ammonites such as Normannites orbignyi lived as active swimming marine animals, moving through the water column before their shells eventually settled onto the sea floor after death.Burial within carbonate-rich sediment helped preserve some shells over millions of years. Mineralisation, compaction, and natural geological alteration gradually transformed the remains into fossils within the Inferior Oolite Formation. DORSET JURASSIC LOCALITYDorset is one of the most famous fossil-producing regions in the UK, with a long history of geological study and fossil collecting. While the Jurassic Coast is internationally known, inland and formation-specific Dorset localities also provide important Middle Jurassic ammonite material from the Inferior Oolite.Fossils from Dorset are especially collectable because they represent classic British Jurassic marine deposits. The region’s sedimentary rocks record changing sea levels, warm shallow marine environments, and the rich invertebrate life that flourished during the Middle Jurassic. A Dorset Normannites orbignyi ammonite therefore offers both attractive display appeal and strong geological context. AMMONITE MORPHOLOGY AND NATURAL FEATURESNormannites orbignyi displays the classic planispiral ammonite shell form, with the shell coiled in a flat spiral. Stephanoceratid ammonites are often admired for their rounded whorls, visible umbilicus, compact form, and pronounced ribbing. Depending on preservation, this fossil may show rib detail, whorl shape, shell ornamentation, natural mineral staining, matrix attachment, surface wear, or fossilisation texture.The shell of an ammonite was divided internally into chambers, with the living animal occupying the outer body chamber. These chambers helped regulate buoyancy in the water column, while the outer shell shape, ribbing, whorl proportions, and ornamentation are key features used in ammonite comparison and identification.Natural details such as small fractures, sedimentary contact marks, weathered areas, colour variation, mineral deposits, and matrix are part of the fossil’s geological history. These features give the specimen individuality and help distinguish a genuine natural fossil from a modern cast or replica. COLLECTING, DISPLAY AND EDUCATIONAL INTERESTThis Normannites orbignyi ammonite fossil is well suited for display in a fossil cabinet, study, classroom, office, collection drawer, natural history arrangement, or British Jurassic fossil collection. Its named species identification, Inferior Oolite Formation origin, Middle Jurassic Bajocian age, and Dorset locality give it strong collecting appeal.It is suitable for collectors interested in Dorset fossils, British ammonites, Jurassic marine life, extinct cephalopods, palaeontology, geology, and educational fossil specimens. The natural coiled form gives the fossil immediate visual impact, while the species name and geological formation provide valuable context for anyone interested in prehistoric marine environments. AUTHENTICITY AND SPECIMEN DETAILSThis is a genuine Normannites orbignyi ammonite fossil from the Inferior Oolite Formation, Middle Jurassic, Bajocian Stage, Dorset, UK. It includes a Certificate of Authenticity lifetime guarantee generic card. The photo shows the actual fossil you will receive, and full sizing information can be seen in the photo.
Formation, Middle Jurassic, Bajocian Stage, Dorset, UK. This carefully chosen specimen is an excellent fossil for collectors of British ammonites, Dorset fossils, Jurassic marine life, extinct cephalopods, natural history specimens, and well-labelled palaeontological display pieces.The photograph shows the actual fossil you will receive, allowing you to view the individual preservation, shell form, surface detail, colour, matrix, and natural character of this specific specimen before purchase. Full sizing details can be seen in the photo. This fossil includes a Certificate of Authenticity lifetime guarantee generic card, confirming it as a genuine specimen. FOSSIL TYPE, SPECIES AND SCIENTIFIC CLASSIFICATIONNormannites orbignyi is an ammonite, an extinct marine cephalopod belonging to the order Ammonitida. Ammonites were related to modern squid, cuttlefish, octopus, and nautilus, and are among the most recognisable fossils of the Jurassic Period. Their coiled shells, chambered structure, varied ribbing, and rapid evolutionary changes make them highly valued by fossil collectors and important in palaeontology.This specimen belongs to the genus Normannites and the species Normannites orbignyi. The genus is associated with the family Stephanoceratidae, a notable group of Middle Jurassic ammonites often recognised for compact coiling, rounded whorls, strong ribbing, and a bold sculptural appearance. Stephanoceratid ammonites are especially important in Bajocian biostratigraphy, where their changing shell forms help geologists compare and date marine sedimentary rocks. GEOLOGICAL AGE AND INFERIOR OOLITE FORMATIONThis fossil comes from the Inferior Oolite Formation, a classic British Middle Jurassic rock unit known for its fossiliferous limestones, sandy limestones, iron-rich horizons, and diverse marine fossil assemblages. The specimen dates to the Bajocian Stage of the Middle Jurassic, approximately 170 to 168 million years ago.During the Bajocian, southern Britain was covered by warm, shallow marine waters. These ancient seas supported ammonites, belemnites, bivalves, brachiopods, gastropods, echinoids, corals, and other marine organisms. Ammonites such as Normannites orbignyi lived as active swimming marine animals, moving through the water column before their shells eventually settled onto the sea floor after death.Burial within carbonate-rich sediment helped preserve some shells over millions of years. Mineralisation, compaction, and natural geological alteration gradually transformed the remains into fossils within the Inferior Oolite Formation. DORSET JURASSIC LOCALITYDorset is one of the most famous fossil-producing regions in the UK, with a long history of geological study and fossil collecting. While the Jurassic Coast is internationally known, inland and formation-specific Dorset localities also provide important Middle Jurassic ammonite material from the Inferior Oolite.Fossils from Dorset are especially collectable because they represent classic British Jurassic marine deposits. The region’s sedimentary rocks record changing sea levels, warm shallow marine environments, and the rich invertebrate life that flourished during the Middle Jurassic. A Dorset Normannites orbignyi ammonite therefore offers both attractive display appeal and strong geological context. AMMONITE MORPHOLOGY AND NATURAL FEATURESNormannites orbignyi displays the classic planispiral ammonite shell form, with the shell coiled in a flat spiral. Stephanoceratid ammonites are often admired for their rounded whorls, visible umbilicus, compact form, and pronounced ribbing. Depending on preservation, this fossil may show rib detail, whorl shape, shell ornamentation, natural mineral staining, matrix attachment, surface wear, or fossilisation texture.The shell of an ammonite was divided internally into chambers, with the living animal occupying the outer body chamber. These chambers helped regulate buoyancy in the water column, while the outer shell shape, ribbing, whorl proportions, and ornamentation are key features used in ammonite comparison and identification.Natural details such as small fractures, sedimentary contact marks, weathered areas, colour variation, mineral deposits, and matrix are part of the fossil’s geological history. These features give the specimen individuality and help distinguish a genuine natural fossil from a modern cast or replica. COLLECTING, DISPLAY AND EDUCATIONAL INTERESTThis Normannites orbignyi ammonite fossil is well suited for display in a fossil cabinet, study, classroom, office, collection drawer, natural history arrangement, or British Jurassic fossil collection. Its named species identification, Inferior Oolite Formation origin, Middle Jurassic Bajocian age, and Dorset locality give it strong collecting appeal.It is suitable for collectors interested in Dorset fossils, British ammonites, Jurassic marine life, extinct cephalopods, palaeontology, geology, and educational fossil specimens. The natural coiled form gives the fossil immediate visual impact, while the species name and geological formation provide valuable context for anyone interested in prehistoric marine environments. AUTHENTICITY AND SPECIMEN DETAILSThis is a genuine Normannites orbignyi ammonite fossil from the Inferior Oolite Formation, Middle Jurassic, Bajocian Stage, Dorset, UK. It includes a Certificate of Authenticity lifetime guarantee generic card. The photo shows the actual fossil you will receive, and full sizing information can be seen in the photo.
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