Normannites densus Ammonite Fossil Bajocian Dorset UK Genuine Jurassic Specimen COA Inferior Oolite Frogden Humphriesianum Zone
£ 24.00
GENUINE NORMANNITES DENSUS AMMONITE FOSSILThis is a genuine Normannites densus ammonite fossil from the Inferior Oolite
Formation, Middle Jurassic, Bajocian Stage, Humphriesianum Zone, collected from Frogden, Dorset, UK. This carefully chosen fossil specimen is an excellent piece for collectors of British ammonites, Dorset fossils, Jurassic marine fossils, extinct cephalopods, and well-labelled natural history specimens.The photograph shows the actual fossil you will receive, allowing you to view the individual preservation, shell form, colour, surface detail, 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 densus 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 iconic fossils of the Jurassic Period. Their coiled shells, varied ornamentation, and rapid evolutionary changes make them important fossils for palaeontology and highly desirable for collectors.This specimen belongs to the genus Normannites and the species Normannites densus. Normannites is associated with the family Stephanoceratidae, a well-known group of Middle Jurassic ammonites often recognised for robust shell forms and strong ribbing. Stephanoceratid ammonites are important in Bajocian biostratigraphy, helping geologists compare and date Jurassic marine rock layers. GEOLOGICAL AGE, ZONE AND FORMATIONThis fossil comes from the Inferior Oolite Formation, a classic British Middle Jurassic rock unit known for fossiliferous limestones, sandy limestones, iron-rich beds, and a rich marine fauna. The specimen dates to the Bajocian Stage of the Middle Jurassic, approximately 170 to 168 million years ago.It is specifically associated with the Humphriesianum Zone, an important ammonite biozone within the Bajocian. Ammonite zones are used by geologists because ammonites evolved quickly and were widely distributed in ancient seas. The Humphriesianum Zone is a recognised interval in Middle Jurassic biostratigraphy and is strongly associated with diverse ammonite faunas, including stephanoceratid forms. FROGDEN, DORSET LOCALITYThis Normannites densus fossil was collected from Frogden, Dorset, UK, a locality associated with the Inferior Oolite and the fossil-rich Jurassic geology of southern England. Dorset is one of Britain’s most important fossil-producing regions, with a long history of palaeontological study and collecting.During the Bajocian, this part of southern Britain was covered by warm, shallow marine waters. These seas supported ammonites, belemnites, bivalves, brachiopods, gastropods, echinoids, corals, and other marine organisms. Ammonites such as Normannites densus lived as active swimming cephalopods before their shells eventually settled onto the sea floor after death.Burial in lime-rich sediment helped preserve some ammonite shells over millions of years. Mineralisation, compaction, and natural geological alteration gradually transformed the remains into fossils within the Inferior Oolite Formation. AMMONITE MORPHOLOGY AND NATURAL FEATURESNormannites densus displays the classic planispiral ammonite shell form, with the shell coiled in a flat spiral. Species within this type of ammonite group are often appreciated for their bold ribbing, rounded whorls, compact coiling, and strong sculptural appearance. Depending on preservation, the fossil may show whorl shape, rib detail, shell ornamentation, mineral staining, natural matrix, surface wear, or fossilisation textures.The shell of an ammonite was divided internally into chambers, with the living animal occupying the outer body chamber. The chambered structure helped with buoyancy in the water column, while the outer shell shape and ornamentation are important features used in ammonite identification.Natural details such as small fractures, weathered areas, sedimentary contact marks, matrix attachment, colour variation, and mineral deposits are part of the fossil’s geological history. These features add individuality and help distinguish a genuine natural fossil from a modern cast or replica. COLLECTING, DISPLAY AND EDUCATIONAL INTERESTThis Normannites densus ammonite fossil is ideal 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, Bajocian age, Humphriesianum Zone association, and Frogden 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 appeal, while the detailed geological information adds scientific value and makes it a meaningful specimen from the ancient seas of Jurassic Britain. AUTHENTICITY AND SPECIMEN DETAILSThis is a genuine Normannites densus ammonite fossil from the Inferior Oolite Formation, Middle Jurassic, Bajocian Stage, Humphriesianum Zone, Frogden, 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, Humphriesianum Zone, collected from Frogden, Dorset, UK. This carefully chosen fossil specimen is an excellent piece for collectors of British ammonites, Dorset fossils, Jurassic marine fossils, extinct cephalopods, and well-labelled natural history specimens.The photograph shows the actual fossil you will receive, allowing you to view the individual preservation, shell form, colour, surface detail, 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 densus 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 iconic fossils of the Jurassic Period. Their coiled shells, varied ornamentation, and rapid evolutionary changes make them important fossils for palaeontology and highly desirable for collectors.This specimen belongs to the genus Normannites and the species Normannites densus. Normannites is associated with the family Stephanoceratidae, a well-known group of Middle Jurassic ammonites often recognised for robust shell forms and strong ribbing. Stephanoceratid ammonites are important in Bajocian biostratigraphy, helping geologists compare and date Jurassic marine rock layers. GEOLOGICAL AGE, ZONE AND FORMATIONThis fossil comes from the Inferior Oolite Formation, a classic British Middle Jurassic rock unit known for fossiliferous limestones, sandy limestones, iron-rich beds, and a rich marine fauna. The specimen dates to the Bajocian Stage of the Middle Jurassic, approximately 170 to 168 million years ago.It is specifically associated with the Humphriesianum Zone, an important ammonite biozone within the Bajocian. Ammonite zones are used by geologists because ammonites evolved quickly and were widely distributed in ancient seas. The Humphriesianum Zone is a recognised interval in Middle Jurassic biostratigraphy and is strongly associated with diverse ammonite faunas, including stephanoceratid forms. FROGDEN, DORSET LOCALITYThis Normannites densus fossil was collected from Frogden, Dorset, UK, a locality associated with the Inferior Oolite and the fossil-rich Jurassic geology of southern England. Dorset is one of Britain’s most important fossil-producing regions, with a long history of palaeontological study and collecting.During the Bajocian, this part of southern Britain was covered by warm, shallow marine waters. These seas supported ammonites, belemnites, bivalves, brachiopods, gastropods, echinoids, corals, and other marine organisms. Ammonites such as Normannites densus lived as active swimming cephalopods before their shells eventually settled onto the sea floor after death.Burial in lime-rich sediment helped preserve some ammonite shells over millions of years. Mineralisation, compaction, and natural geological alteration gradually transformed the remains into fossils within the Inferior Oolite Formation. AMMONITE MORPHOLOGY AND NATURAL FEATURESNormannites densus displays the classic planispiral ammonite shell form, with the shell coiled in a flat spiral. Species within this type of ammonite group are often appreciated for their bold ribbing, rounded whorls, compact coiling, and strong sculptural appearance. Depending on preservation, the fossil may show whorl shape, rib detail, shell ornamentation, mineral staining, natural matrix, surface wear, or fossilisation textures.The shell of an ammonite was divided internally into chambers, with the living animal occupying the outer body chamber. The chambered structure helped with buoyancy in the water column, while the outer shell shape and ornamentation are important features used in ammonite identification.Natural details such as small fractures, weathered areas, sedimentary contact marks, matrix attachment, colour variation, and mineral deposits are part of the fossil’s geological history. These features add individuality and help distinguish a genuine natural fossil from a modern cast or replica. COLLECTING, DISPLAY AND EDUCATIONAL INTERESTThis Normannites densus ammonite fossil is ideal 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, Bajocian age, Humphriesianum Zone association, and Frogden 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 appeal, while the detailed geological information adds scientific value and makes it a meaningful specimen from the ancient seas of Jurassic Britain. AUTHENTICITY AND SPECIMEN DETAILSThis is a genuine Normannites densus ammonite fossil from the Inferior Oolite Formation, Middle Jurassic, Bajocian Stage, Humphriesianum Zone, Frogden, 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.
Other Products
