Orthosphinctes polygyratus Ammonite Fossil Kimmeridgian Germany COA Genuine, Jurassic Bavaria Gräfenberg Collectable
£ 36.00
Genuine Orthosphinctes polygyratus Ammonite FossilThis listing is for a genuine Orthosphinctes polygyratus ammonite fossil from
Gräfenberg, Bavaria, Germany, dating to the Upper Jurassic, Kimmeridgian stage. This carefully chosen fossil is an authentic natural specimen and includes a Certificate of Authenticity lifetime guarantee generic card. The photograph shows the actual fossil you will receive, so the piece pictured is the exact specimen supplied. Full sizing details can be seen in the photo.This is an excellent fossil for collectors of Jurassic ammonites, German fossils, marine cephalopods, prehistoric sea life, natural history specimens, educational geology collections, and display-quality fossil pieces. With its Upper Jurassic age and classic European provenance, this ammonite represents a genuine piece of ancient marine history from the warm seas that once covered parts of what is now southern Germany.Fossil Type and SpeciesOrthosphinctes polygyratus is an ammonite, an extinct marine cephalopod related to modern squid, cuttlefish, octopus, and nautilus. Ammonites had coiled, chambered shells, with the living animal occupying the outer body chamber. The internal chambers helped control buoyancy, allowing the ammonite to move through the water column of ancient Jurassic seas.Orthosphinctes is a perisphinctid ammonite genus, part of a large and important Jurassic ammonite group known for strongly ribbed shells, open coiling in many forms, and a distinctive whorl structure. Perisphinctid ammonites are especially valued by collectors because their ribbing and spiral form often create a bold, attractive fossil with strong visual detail. The species Orthosphinctes polygyratus is associated with the classic Upper Jurassic ammonite faunas of Europe.Upper Jurassic Kimmeridgian AgeThis fossil dates to the Kimmeridgian stage of the Upper Jurassic Period. The Kimmeridgian was a time of widespread marine environments across much of Europe, with warm shallow seas supporting a rich variety of life. These ancient ecosystems included ammonites, belemnites, bivalves, brachiopods, gastropods, echinoids, crinoids, fish, and marine reptiles.Ammonites from the Kimmeridgian are highly important in geology because they evolved quickly and are widely used for dating and correlating marine sedimentary rocks. Their changing shell forms and species distributions allow palaeontologists to divide Jurassic rock layers into more precise intervals. A fossil such as Orthosphinctes polygyratus is therefore not only an attractive display piece but also a genuine record of Upper Jurassic marine evolution.Gräfenberg, Bavaria, Germany LocalityThis specimen comes from Gräfenberg in Bavaria, Germany, a region well known for fossil-bearing Jurassic deposits. Bavaria is famous for its Mesozoic marine rocks, particularly those that preserve ammonites and other marine fossils from the ancient seas that once covered the area. Fossils from German Jurassic localities are highly collectable because of their classic European geological setting, strong scientific interest, and historic connection to palaeontology.The sedimentary rocks of the region record ancient sea-floor environments where ammonite shells and other marine remains accumulated, became buried by sediment, and gradually mineralised over millions of years. These fossils provide a direct link to the prehistoric marine habitats that existed long before the modern landscape of Bavaria formed.Morphology and Collectable FeaturesOrthosphinctes ammonites are appreciated for their classic coiled ammonite form and attractive ribbed ornamentation. Depending on preservation, specimens may show strong ribs, visible whorl structure, a defined umbilicus, natural shell texture, mineralised detail, and surrounding matrix from the original Jurassic rock. The ribbing records shell growth and gives the fossil a distinctive sculptural appearance that makes it appealing for display.The perisphinctid style of ammonite shell is especially recognisable, often showing regular ribbing across the whorls and a balanced spiral form. These features make Orthosphinctes polygyratus a desirable fossil for collectors who appreciate traditional Jurassic ammonites with clear natural character and strong geological provenance.Authenticity and Display AppealAs a genuine natural fossil, this specimen may show normal signs of age and preservation, including surface texture, mineral replacement, matrix attachment, small chips, repairs, weathering, compression, or natural colour variation. These are typical features of authentic fossils and form part of the individual character of the piece. This is not a modern replica, cast, or decorative imitation.Fossil type: AmmoniteSpecies: Orthosphinctes polygyratusAge: Upper Jurassic, KimmeridgianLocality: Gräfenberg, Bavaria, GermanyOrder: AmmonitidaFamily: PerisphinctidaeCertificate: Includes a Certificate of Authenticity lifetime guarantee generic cardSpecimen shown: The photo shows the actual fossil you will receiveSize: Full sizing shown in the photoThis Orthosphinctes polygyratus ammonite fossil is a carefully selected genuine specimen with strong appeal for collectors of Jurassic fossils, German fossils, ammonites, marine cephalopods, and prehistoric natural history. Its Kimmeridgian age, classic ribbed ammonite form, Bavarian provenance, and included Certificate of Authenticity make it a desirable addition to any fossil collection, display cabinet, teaching set, or geology-themed gift.
Gräfenberg, Bavaria, Germany, dating to the Upper Jurassic, Kimmeridgian stage. This carefully chosen fossil is an authentic natural specimen and includes a Certificate of Authenticity lifetime guarantee generic card. The photograph shows the actual fossil you will receive, so the piece pictured is the exact specimen supplied. Full sizing details can be seen in the photo.This is an excellent fossil for collectors of Jurassic ammonites, German fossils, marine cephalopods, prehistoric sea life, natural history specimens, educational geology collections, and display-quality fossil pieces. With its Upper Jurassic age and classic European provenance, this ammonite represents a genuine piece of ancient marine history from the warm seas that once covered parts of what is now southern Germany.Fossil Type and SpeciesOrthosphinctes polygyratus is an ammonite, an extinct marine cephalopod related to modern squid, cuttlefish, octopus, and nautilus. Ammonites had coiled, chambered shells, with the living animal occupying the outer body chamber. The internal chambers helped control buoyancy, allowing the ammonite to move through the water column of ancient Jurassic seas.Orthosphinctes is a perisphinctid ammonite genus, part of a large and important Jurassic ammonite group known for strongly ribbed shells, open coiling in many forms, and a distinctive whorl structure. Perisphinctid ammonites are especially valued by collectors because their ribbing and spiral form often create a bold, attractive fossil with strong visual detail. The species Orthosphinctes polygyratus is associated with the classic Upper Jurassic ammonite faunas of Europe.Upper Jurassic Kimmeridgian AgeThis fossil dates to the Kimmeridgian stage of the Upper Jurassic Period. The Kimmeridgian was a time of widespread marine environments across much of Europe, with warm shallow seas supporting a rich variety of life. These ancient ecosystems included ammonites, belemnites, bivalves, brachiopods, gastropods, echinoids, crinoids, fish, and marine reptiles.Ammonites from the Kimmeridgian are highly important in geology because they evolved quickly and are widely used for dating and correlating marine sedimentary rocks. Their changing shell forms and species distributions allow palaeontologists to divide Jurassic rock layers into more precise intervals. A fossil such as Orthosphinctes polygyratus is therefore not only an attractive display piece but also a genuine record of Upper Jurassic marine evolution.Gräfenberg, Bavaria, Germany LocalityThis specimen comes from Gräfenberg in Bavaria, Germany, a region well known for fossil-bearing Jurassic deposits. Bavaria is famous for its Mesozoic marine rocks, particularly those that preserve ammonites and other marine fossils from the ancient seas that once covered the area. Fossils from German Jurassic localities are highly collectable because of their classic European geological setting, strong scientific interest, and historic connection to palaeontology.The sedimentary rocks of the region record ancient sea-floor environments where ammonite shells and other marine remains accumulated, became buried by sediment, and gradually mineralised over millions of years. These fossils provide a direct link to the prehistoric marine habitats that existed long before the modern landscape of Bavaria formed.Morphology and Collectable FeaturesOrthosphinctes ammonites are appreciated for their classic coiled ammonite form and attractive ribbed ornamentation. Depending on preservation, specimens may show strong ribs, visible whorl structure, a defined umbilicus, natural shell texture, mineralised detail, and surrounding matrix from the original Jurassic rock. The ribbing records shell growth and gives the fossil a distinctive sculptural appearance that makes it appealing for display.The perisphinctid style of ammonite shell is especially recognisable, often showing regular ribbing across the whorls and a balanced spiral form. These features make Orthosphinctes polygyratus a desirable fossil for collectors who appreciate traditional Jurassic ammonites with clear natural character and strong geological provenance.Authenticity and Display AppealAs a genuine natural fossil, this specimen may show normal signs of age and preservation, including surface texture, mineral replacement, matrix attachment, small chips, repairs, weathering, compression, or natural colour variation. These are typical features of authentic fossils and form part of the individual character of the piece. This is not a modern replica, cast, or decorative imitation.Fossil type: AmmoniteSpecies: Orthosphinctes polygyratusAge: Upper Jurassic, KimmeridgianLocality: Gräfenberg, Bavaria, GermanyOrder: AmmonitidaFamily: PerisphinctidaeCertificate: Includes a Certificate of Authenticity lifetime guarantee generic cardSpecimen shown: The photo shows the actual fossil you will receiveSize: Full sizing shown in the photoThis Orthosphinctes polygyratus ammonite fossil is a carefully selected genuine specimen with strong appeal for collectors of Jurassic fossils, German fossils, ammonites, marine cephalopods, and prehistoric natural history. Its Kimmeridgian age, classic ribbed ammonite form, Bavarian provenance, and included Certificate of Authenticity make it a desirable addition to any fossil collection, display cabinet, teaching set, or geology-themed gift.
