Mantelliceras saxbii Ammonite Fossil Cenomanian Cretaceous UK Authentic Specimen COA
£ 18.00
MANTELLICERAS SAXBII AMMONITE FOSSILThis listing offers a rare and scientifically important Mantelliceras saxbii
Ammonite Fossil from the Lower Cenomanian stage of the Late Cretaceous, collected in Sussex, United Kingdom. At approximately 100–96 million years old, this ammonite represents a key index species used to define biozones of the Cenomanian. The exact specimen pictured will be sent, shown with a 1 cm scale cube for reference. All fossils are 100% genuine and are accompanied by a Certificate of Authenticity. GEOLOGICAL CONTEXT – CENOMANIAN OF SUSSEXThe specimen originates from Lower Cenomanian chalk and marl deposits in Sussex, one of the most important fossil-bearing regions of southern England. During the Cenomanian, global sea levels rose to some of the highest in Earth’s history, covering most of Europe in shallow epicontinental seas linked to the Tethys and proto-Atlantic Oceans.The chalk sequences of Sussex are world-renowned and form part of the same geologic group as the iconic White Cliffs of Dover. These deposits preserve a rich fossil assemblage, including ammonites, belemnites, inoceramid bivalves, echinoids, and other marine organisms. Fossils such as Mantelliceras saxbii are essential for correlating Cenomanian strata and remain reference points in global biostratigraphy. SPECIES OVERVIEW – MANTELLICERAS SAXBIIThe fossil has been identified as Mantelliceras saxbii, belonging to the order Ammonitida, superfamily Acanthoceratoidea, and family Acanthoceratidae. The genus Mantelliceras is one of the most characteristic ammonite groups of the Cenomanian, widely distributed across Europe.M. saxbii is notable for its moderately involute shell, strong and evenly spaced ribs, and prominent tubercles on the ventrolateral shoulders. Its ribbing is bold and diagnostic, often bifurcating across the flanks before terminating in distinct nodes. These features not only provide structural strength but also serve as key identifiers for paleontologists.The species is highly significant in biostratigraphy, as it helps define the Mantelliceras saxbii Biozone within the Lower Cenomanian. This makes it an excellent marker fossil for dating and correlating chalk successions across Europe. PALEONTOLOGICAL IMPORTANCEMantelliceras saxbii is considered a classic index fossil of the Lower Cenomanian. Its narrow stratigraphic distribution and distinctive shell morphology make it crucial for constructing ammonite biozones. The presence of this species in Sussex chalk deposits provides vital data for reconstructing the geologic timescale and for correlating strata between Britain, France, and other parts of Europe.The species also demonstrates evolutionary developments within the Acanthoceratidae, a family that achieved great diversity and success during the mid-Cretaceous. Its heavily ornamented shell reflects adaptive strategies for life as a nektonic predator in open marine environments. COLLECTOR’S AND EDUCATIONAL VALUEThis Mantelliceras saxbii ammonite fossil is a highly desirable specimen for collectors of British ammonites and classic Cretaceous fossils. Its provenance from Sussex, United Kingdom, adds historical and scientific importance, as the region has been studied since the earliest days of paleontology.For educators and students, it provides an excellent teaching example, illustrating ammonite morphology, biozone stratigraphy, and the paleoecology of Cenomanian seas. Its bold ribbing and tubercles make it both scientifically valuable and visually impressive, suitable for display and study alike. GUARANTEE OF AUTHENTICITY
• 100% genuine Mantelliceras saxbii ammonite fossil
• Supplied with a Certificate of Authenticity
• The exact specimen shown in the photographs will be sentThis is a rare chance to own a scientifically important and beautifully preserved Mantelliceras saxbii Ammonite Fossil from the Lower Cenomanian of Sussex, United Kingdom, a specimen of true historical and paleontological significance.
Ammonite Fossil from the Lower Cenomanian stage of the Late Cretaceous, collected in Sussex, United Kingdom. At approximately 100–96 million years old, this ammonite represents a key index species used to define biozones of the Cenomanian. The exact specimen pictured will be sent, shown with a 1 cm scale cube for reference. All fossils are 100% genuine and are accompanied by a Certificate of Authenticity. GEOLOGICAL CONTEXT – CENOMANIAN OF SUSSEXThe specimen originates from Lower Cenomanian chalk and marl deposits in Sussex, one of the most important fossil-bearing regions of southern England. During the Cenomanian, global sea levels rose to some of the highest in Earth’s history, covering most of Europe in shallow epicontinental seas linked to the Tethys and proto-Atlantic Oceans.The chalk sequences of Sussex are world-renowned and form part of the same geologic group as the iconic White Cliffs of Dover. These deposits preserve a rich fossil assemblage, including ammonites, belemnites, inoceramid bivalves, echinoids, and other marine organisms. Fossils such as Mantelliceras saxbii are essential for correlating Cenomanian strata and remain reference points in global biostratigraphy. SPECIES OVERVIEW – MANTELLICERAS SAXBIIThe fossil has been identified as Mantelliceras saxbii, belonging to the order Ammonitida, superfamily Acanthoceratoidea, and family Acanthoceratidae. The genus Mantelliceras is one of the most characteristic ammonite groups of the Cenomanian, widely distributed across Europe.M. saxbii is notable for its moderately involute shell, strong and evenly spaced ribs, and prominent tubercles on the ventrolateral shoulders. Its ribbing is bold and diagnostic, often bifurcating across the flanks before terminating in distinct nodes. These features not only provide structural strength but also serve as key identifiers for paleontologists.The species is highly significant in biostratigraphy, as it helps define the Mantelliceras saxbii Biozone within the Lower Cenomanian. This makes it an excellent marker fossil for dating and correlating chalk successions across Europe. PALEONTOLOGICAL IMPORTANCEMantelliceras saxbii is considered a classic index fossil of the Lower Cenomanian. Its narrow stratigraphic distribution and distinctive shell morphology make it crucial for constructing ammonite biozones. The presence of this species in Sussex chalk deposits provides vital data for reconstructing the geologic timescale and for correlating strata between Britain, France, and other parts of Europe.The species also demonstrates evolutionary developments within the Acanthoceratidae, a family that achieved great diversity and success during the mid-Cretaceous. Its heavily ornamented shell reflects adaptive strategies for life as a nektonic predator in open marine environments. COLLECTOR’S AND EDUCATIONAL VALUEThis Mantelliceras saxbii ammonite fossil is a highly desirable specimen for collectors of British ammonites and classic Cretaceous fossils. Its provenance from Sussex, United Kingdom, adds historical and scientific importance, as the region has been studied since the earliest days of paleontology.For educators and students, it provides an excellent teaching example, illustrating ammonite morphology, biozone stratigraphy, and the paleoecology of Cenomanian seas. Its bold ribbing and tubercles make it both scientifically valuable and visually impressive, suitable for display and study alike. GUARANTEE OF AUTHENTICITY
• 100% genuine Mantelliceras saxbii ammonite fossil
• Supplied with a Certificate of Authenticity
• The exact specimen shown in the photographs will be sentThis is a rare chance to own a scientifically important and beautifully preserved Mantelliceras saxbii Ammonite Fossil from the Lower Cenomanian of Sussex, United Kingdom, a specimen of true historical and paleontological significance.
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