Glochiceras Coryceras sp Ammonite Fossil Kimmeridgian Germany Genuine COA Jurassic Geisingen Baden-Württemberg Specimen
£ 36.00
GENUINE GLOCHICERAS CORYCERAS SP. AMMONITE FOSSILThis is a genuine Glochiceras (Coryceras) sp. ammonite fossil from the Upper
Jurassic, Kimmeridgian Stage, collected from Geisingen, Baden-Württemberg, Germany. This carefully chosen fossil specimen is an attractive and scientifically interesting piece for collectors of German ammonites, Upper Jurassic fossils, extinct marine cephalopods, natural history specimens, and well-labelled palaeontological display fossils.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, GENUS AND SCIENTIFIC CLASSIFICATIONGlochiceras (Coryceras) sp. 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, varied ornamentation, and rapid evolutionary development make them highly valued by collectors and important in palaeontology.This specimen is identified to genus and subgenus level as Glochiceras (Coryceras) sp., meaning it belongs to this ammonite group while the exact species is not specified. Genus-level identification is still highly useful for collectors, especially when combined with precise geological age and locality information. Glochiceras is commonly associated with oppeliid ammonites, a group often recognised for compact, finely formed shells, compressed whorls, and refined ornamentation rather than the heavy ribbing seen in some other Jurassic ammonites. GEOLOGICAL AGE AND KIMMERIDGIAN CONTEXTThis fossil dates from the Kimmeridgian Stage of the Upper Jurassic, approximately 157 to 152 million years ago. The Kimmeridgian was a time of widespread marine environments across Europe, with ammonites forming an abundant and diverse part of ancient sea ecosystems. Their rapid evolution and broad distribution make many ammonite groups useful for comparing and dating Jurassic sedimentary rocks.During the Kimmeridgian, ammonites such as Glochiceras (Coryceras) lived as active swimming marine animals. Their shells were divided into internal chambers, with the living animal occupying the outer body chamber. This chambered shell helped regulate buoyancy in the water column, allowing the ammonite to move through Jurassic seas before the shell eventually settled onto the sea floor after death. GEISINGEN, BADEN-WÜRTTEMBERG LOCALITYThis fossil comes from Geisingen in Baden-Württemberg, Germany, a region known for important Jurassic sedimentary rocks and fossil-bearing marine deposits. German Jurassic ammonites are highly collectable because they often come from classic European geological settings with strong scientific context, attractive preservation, and precise locality information.During the Upper Jurassic, parts of what is now southern Germany were covered by marine environments connected to broader European seas. Carbonate-rich sediments, limestones, marls, and sea-floor deposits helped preserve the remains of ancient marine organisms. These environments supported ammonites, belemnites, bivalves, brachiopods, gastropods, echinoids, and other marine invertebrates. Over millions of years, mineralisation, compaction, and natural geological alteration preserved some shells as fossils within the sedimentary rock record. AMMONITE MORPHOLOGY AND NATURAL FEATURESGlochiceras (Coryceras) ammonites display the classic planispiral ammonite shell form, with the shell coiled in a flat spiral. Ammonites of this general group are often appreciated for their neat coiling, compressed whorl profile, fine surface detail, and elegant overall outline. Depending on preservation, this fossil may show whorl shape, subtle ribbing or striation, shell curvature, natural mineral staining, matrix attachment, surface wear, or fossilisation texture.The outer shell shape, whorl proportions, ornament pattern, umbilical structure, and suture detail are important features used in ammonite comparison and identification. Natural details such as small fractures, sedimentary contact marks, worn areas, colour variation, mineral deposits, and matrix are part of the fossil’s geological history. These characteristics add individuality to the specimen and help distinguish a genuine natural fossil from a modern cast or replica. COLLECTING, DISPLAY AND EDUCATIONAL INTERESTThis Glochiceras (Coryceras) sp. ammonite fossil is well suited for display in a fossil cabinet, study, classroom, office, collection drawer, natural history arrangement, or Upper Jurassic fossil collection. Its genus and subgenus identification, Kimmeridgian age, German origin, and classic ammonite form give it strong collecting appeal.It is suitable for collectors interested in German fossils, Jurassic ammonites, extinct cephalopods, marine invertebrates, palaeontology, geology, educational fossil specimens, and natural history display pieces. The natural coiled shell form gives the fossil immediate visual impact, while the geological age and Geisingen locality provide valuable scientific context for anyone interested in prehistoric marine environments. AUTHENTICITY AND SPECIMEN DETAILSThis is a genuine Glochiceras (Coryceras) sp. ammonite fossil from the Upper Jurassic, Kimmeridgian Stage, Geisingen, Baden-Württemberg, Germany. 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.
Jurassic, Kimmeridgian Stage, collected from Geisingen, Baden-Württemberg, Germany. This carefully chosen fossil specimen is an attractive and scientifically interesting piece for collectors of German ammonites, Upper Jurassic fossils, extinct marine cephalopods, natural history specimens, and well-labelled palaeontological display fossils.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, GENUS AND SCIENTIFIC CLASSIFICATIONGlochiceras (Coryceras) sp. 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, varied ornamentation, and rapid evolutionary development make them highly valued by collectors and important in palaeontology.This specimen is identified to genus and subgenus level as Glochiceras (Coryceras) sp., meaning it belongs to this ammonite group while the exact species is not specified. Genus-level identification is still highly useful for collectors, especially when combined with precise geological age and locality information. Glochiceras is commonly associated with oppeliid ammonites, a group often recognised for compact, finely formed shells, compressed whorls, and refined ornamentation rather than the heavy ribbing seen in some other Jurassic ammonites. GEOLOGICAL AGE AND KIMMERIDGIAN CONTEXTThis fossil dates from the Kimmeridgian Stage of the Upper Jurassic, approximately 157 to 152 million years ago. The Kimmeridgian was a time of widespread marine environments across Europe, with ammonites forming an abundant and diverse part of ancient sea ecosystems. Their rapid evolution and broad distribution make many ammonite groups useful for comparing and dating Jurassic sedimentary rocks.During the Kimmeridgian, ammonites such as Glochiceras (Coryceras) lived as active swimming marine animals. Their shells were divided into internal chambers, with the living animal occupying the outer body chamber. This chambered shell helped regulate buoyancy in the water column, allowing the ammonite to move through Jurassic seas before the shell eventually settled onto the sea floor after death. GEISINGEN, BADEN-WÜRTTEMBERG LOCALITYThis fossil comes from Geisingen in Baden-Württemberg, Germany, a region known for important Jurassic sedimentary rocks and fossil-bearing marine deposits. German Jurassic ammonites are highly collectable because they often come from classic European geological settings with strong scientific context, attractive preservation, and precise locality information.During the Upper Jurassic, parts of what is now southern Germany were covered by marine environments connected to broader European seas. Carbonate-rich sediments, limestones, marls, and sea-floor deposits helped preserve the remains of ancient marine organisms. These environments supported ammonites, belemnites, bivalves, brachiopods, gastropods, echinoids, and other marine invertebrates. Over millions of years, mineralisation, compaction, and natural geological alteration preserved some shells as fossils within the sedimentary rock record. AMMONITE MORPHOLOGY AND NATURAL FEATURESGlochiceras (Coryceras) ammonites display the classic planispiral ammonite shell form, with the shell coiled in a flat spiral. Ammonites of this general group are often appreciated for their neat coiling, compressed whorl profile, fine surface detail, and elegant overall outline. Depending on preservation, this fossil may show whorl shape, subtle ribbing or striation, shell curvature, natural mineral staining, matrix attachment, surface wear, or fossilisation texture.The outer shell shape, whorl proportions, ornament pattern, umbilical structure, and suture detail are important features used in ammonite comparison and identification. Natural details such as small fractures, sedimentary contact marks, worn areas, colour variation, mineral deposits, and matrix are part of the fossil’s geological history. These characteristics add individuality to the specimen and help distinguish a genuine natural fossil from a modern cast or replica. COLLECTING, DISPLAY AND EDUCATIONAL INTERESTThis Glochiceras (Coryceras) sp. ammonite fossil is well suited for display in a fossil cabinet, study, classroom, office, collection drawer, natural history arrangement, or Upper Jurassic fossil collection. Its genus and subgenus identification, Kimmeridgian age, German origin, and classic ammonite form give it strong collecting appeal.It is suitable for collectors interested in German fossils, Jurassic ammonites, extinct cephalopods, marine invertebrates, palaeontology, geology, educational fossil specimens, and natural history display pieces. The natural coiled shell form gives the fossil immediate visual impact, while the geological age and Geisingen locality provide valuable scientific context for anyone interested in prehistoric marine environments. AUTHENTICITY AND SPECIMEN DETAILSThis is a genuine Glochiceras (Coryceras) sp. ammonite fossil from the Upper Jurassic, Kimmeridgian Stage, Geisingen, Baden-Württemberg, Germany. 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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