Rare Normannites densus Ammonite with Lappets Jurassic Dorset Fossil COA Inferior Oolite Oborne Wood Quarry Bajocian Specimen
£ 120.00
VERY RARE NORMANNITES DENSUS AMMONITE WITH LAPPETSThis is a genuine very rare Normannites densus ammonite fossil with lappets from
the Inferior Oolite Formation, Middle Jurassic, Bajocian Stage, Humphriesianum Zone, collected from Oborne Wood Quarry, Dorset, UK. This carefully chosen fossil is an exceptional specimen for collectors of British ammonites, Dorset fossils, Jurassic cephalopods, rare ammonite features, and scientifically labelled natural history specimens.The photograph shows the actual fossil you will receive, allowing you to view the individual preservation, shell form, lappet detail, surface texture, 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 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 recognisable fossils of the Jurassic Period. Their coiled shells, chambered internal structure, changing ornamentation, and rapid evolution make them highly valued by collectors and important in palaeontology.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 compact coiling, rounded whorls, bold ribbing, and a strong sculptural shell form. Stephanoceratid ammonites are especially important in Bajocian biostratigraphy because their shell features help geologists compare and date marine sedimentary rock layers. RARE LAPPET PRESERVATIONThe presence of lappets makes this specimen particularly desirable. In ammonites, lappets are projected extensions near the shell aperture, associated with the mature mouth border of some individuals. These delicate structures are much less commonly preserved than the main coiled shell because they could be thin, exposed, and more easily damaged before or during fossilisation.A Normannites densus ammonite with visible lappets is therefore a notable collector’s specimen, offering more anatomical interest than a standard ammonite fossil. Lappets can provide insight into the final growth stage of the animal and add important visual and scientific character to the fossil. Their preservation gives the piece strong display appeal and makes it especially suitable for collectors seeking unusual or advanced ammonite examples. 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 horizons, and diverse marine fossil assemblages. 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 across ancient seas. The Humphriesianum Zone is a recognised Middle Jurassic interval and is closely associated with diverse stephanoceratid ammonite faunas. OBORNE WOOD QUARRY, DORSET LOCALITYThis rare ammonite was collected from Oborne Wood Quarry, Dorset, UK, a locality associated with the fossil-bearing Inferior Oolite deposits of southern England. Dorset is one of Britain’s most important fossil-producing counties, with a long history of geological study and fossil collecting. While the Jurassic Coast is internationally famous, inland Dorset localities such as Oborne Wood Quarry also preserve highly significant Middle Jurassic marine fossils.During the Bajocian, this part of southern Britain lay beneath warm, shallow marine waters. These ancient seas supported ammonites, belemnites, bivalves, brachiopods, gastropods, echinoids, corals, crinoids, and other marine organisms. Ammonites such as Normannites densus lived as active swimming cephalopods, moving through the water column before their shells eventually settled onto the sea floor after death. MORPHOLOGY AND NATURAL FEATURESNormannites densus displays the classic planispiral ammonite shell form, with the shell coiled in a flat spiral. Stephanoceratid ammonites are often admired for their rounded whorls, compact structure, visible umbilicus, and pronounced ribbing. Depending on preservation, this specimen may show rib detail, whorl shape, aperture features, lappet structure, 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 external ribbing, whorl proportions, aperture shape, and lappet features are important aspects of ammonite morphology. Natural details such as small fractures, sedimentary contact marks, worn areas, colour variation, matrix, and mineral deposits are part of the fossil’s geological history and add individuality to the specimen. COLLECTING, DISPLAY AND EDUCATIONAL INTERESTThis very rare Normannites densus ammonite with lappets is well suited for display in a fossil cabinet, study, classroom, office, collection drawer, natural history arrangement, or advanced British Jurassic fossil collection. Its named species identification, preserved lappets, Inferior Oolite Formation origin, Bajocian age, Humphriesianum Zone association, and Oborne Wood Quarry locality give it strong collecting appeal.It is suitable for collectors interested in rare Dorset fossils, British ammonites, Jurassic marine life, extinct cephalopods, ammonite morphology, palaeontology, geology, and educational fossil specimens. The natural coiled shell form gives the fossil immediate visual impact, while the lappets add a more unusual and scientifically interesting feature that makes the specimen stand out from more typical ammonite examples. AUTHENTICITY AND SPECIMEN DETAILSThis is a genuine very rare Normannites densus ammonite fossil with lappets from the Inferior Oolite Formation, Middle Jurassic, Bajocian Stage, Humphriesianum Zone, Oborne Wood Quarry, 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.
the Inferior Oolite Formation, Middle Jurassic, Bajocian Stage, Humphriesianum Zone, collected from Oborne Wood Quarry, Dorset, UK. This carefully chosen fossil is an exceptional specimen for collectors of British ammonites, Dorset fossils, Jurassic cephalopods, rare ammonite features, and scientifically labelled natural history specimens.The photograph shows the actual fossil you will receive, allowing you to view the individual preservation, shell form, lappet detail, surface texture, 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 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 recognisable fossils of the Jurassic Period. Their coiled shells, chambered internal structure, changing ornamentation, and rapid evolution make them highly valued by collectors and important in palaeontology.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 compact coiling, rounded whorls, bold ribbing, and a strong sculptural shell form. Stephanoceratid ammonites are especially important in Bajocian biostratigraphy because their shell features help geologists compare and date marine sedimentary rock layers. RARE LAPPET PRESERVATIONThe presence of lappets makes this specimen particularly desirable. In ammonites, lappets are projected extensions near the shell aperture, associated with the mature mouth border of some individuals. These delicate structures are much less commonly preserved than the main coiled shell because they could be thin, exposed, and more easily damaged before or during fossilisation.A Normannites densus ammonite with visible lappets is therefore a notable collector’s specimen, offering more anatomical interest than a standard ammonite fossil. Lappets can provide insight into the final growth stage of the animal and add important visual and scientific character to the fossil. Their preservation gives the piece strong display appeal and makes it especially suitable for collectors seeking unusual or advanced ammonite examples. 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 horizons, and diverse marine fossil assemblages. 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 across ancient seas. The Humphriesianum Zone is a recognised Middle Jurassic interval and is closely associated with diverse stephanoceratid ammonite faunas. OBORNE WOOD QUARRY, DORSET LOCALITYThis rare ammonite was collected from Oborne Wood Quarry, Dorset, UK, a locality associated with the fossil-bearing Inferior Oolite deposits of southern England. Dorset is one of Britain’s most important fossil-producing counties, with a long history of geological study and fossil collecting. While the Jurassic Coast is internationally famous, inland Dorset localities such as Oborne Wood Quarry also preserve highly significant Middle Jurassic marine fossils.During the Bajocian, this part of southern Britain lay beneath warm, shallow marine waters. These ancient seas supported ammonites, belemnites, bivalves, brachiopods, gastropods, echinoids, corals, crinoids, and other marine organisms. Ammonites such as Normannites densus lived as active swimming cephalopods, moving through the water column before their shells eventually settled onto the sea floor after death. MORPHOLOGY AND NATURAL FEATURESNormannites densus displays the classic planispiral ammonite shell form, with the shell coiled in a flat spiral. Stephanoceratid ammonites are often admired for their rounded whorls, compact structure, visible umbilicus, and pronounced ribbing. Depending on preservation, this specimen may show rib detail, whorl shape, aperture features, lappet structure, 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 external ribbing, whorl proportions, aperture shape, and lappet features are important aspects of ammonite morphology. Natural details such as small fractures, sedimentary contact marks, worn areas, colour variation, matrix, and mineral deposits are part of the fossil’s geological history and add individuality to the specimen. COLLECTING, DISPLAY AND EDUCATIONAL INTERESTThis very rare Normannites densus ammonite with lappets is well suited for display in a fossil cabinet, study, classroom, office, collection drawer, natural history arrangement, or advanced British Jurassic fossil collection. Its named species identification, preserved lappets, Inferior Oolite Formation origin, Bajocian age, Humphriesianum Zone association, and Oborne Wood Quarry locality give it strong collecting appeal.It is suitable for collectors interested in rare Dorset fossils, British ammonites, Jurassic marine life, extinct cephalopods, ammonite morphology, palaeontology, geology, and educational fossil specimens. The natural coiled shell form gives the fossil immediate visual impact, while the lappets add a more unusual and scientifically interesting feature that makes the specimen stand out from more typical ammonite examples. AUTHENTICITY AND SPECIMEN DETAILSThis is a genuine very rare Normannites densus ammonite fossil with lappets from the Inferior Oolite Formation, Middle Jurassic, Bajocian Stage, Humphriesianum Zone, Oborne Wood Quarry, 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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