Hudlestonia Affinis Ammonite Fossil France Jurassic Genuine COA Bajocian Specimen Middle Jurassic Lower Bajocian Collector Fossil
£ 24.00
GENUINE HUDLESTONIA AFFINIS AMMONITE FOSSILThis listing is for a genuine Hudlestonia affinis ammonite fossil from the
Middle Jurassic, Lower Bajocian of France. This carefully chosen fossil specimen has been selected for its natural fossil character, geological interest, and classic Jurassic display appeal. The photograph shows the actual specimen you will receive, so please refer to the photo for the full sizing, proportions, preservation, colour, surface texture, matrix, and overall condition of this individual piece.This fossil is supplied with a Certificate of Authenticity lifetime guarantee generic card, giving confidence that the specimen is a genuine fossil and not a modern replica.SPECIES AND FOSSIL TYPEHudlestonia affinis is an extinct ammonite species, a marine cephalopod that lived in ancient seas during the Jurassic Period. Ammonites were related to modern squid, cuttlefish, octopus, and nautilus, although they lived within coiled, chambered shells. The living animal occupied the final outer body chamber, while the earlier internal chambers helped regulate buoyancy, allowing the ammonite to move through the water column.Hudlestonia belongs to the ammonite order Ammonitida, a major group of Jurassic and Cretaceous ammonites known for their scientific importance and wide variety of shell forms. Ammonites such as Hudlestonia affinis are highly collectable because they combine an attractive natural spiral shape with palaeontological value. Their changing forms through time make them useful fossils for understanding and comparing Jurassic marine rock layers.MIDDLE JURASSIC LOWER BAJOCIAN AGEThis fossil dates from the Lower Bajocian Stage of the Middle Jurassic, approximately 170 million years old. The Bajocian was an important interval in ammonite evolution, following the Aalenian and preceding the Bathonian. During this time, ammonite faunas diversified in warm marine environments across Europe, leaving behind an exceptional fossil record in limestones, marls, clays, and other sedimentary rocks.The Lower Bajocian is especially significant to fossil collectors and geologists because many ammonite species evolved rapidly during this stage. These fossils can help mark detailed time intervals within the Jurassic, making them valuable not only as display specimens but also as examples of ancient marine biostratigraphy.FRENCH JURASSIC GEOLOGYFrance has a rich and important Jurassic fossil record, with many regions preserving marine deposits formed when much of Europe was covered by shallow to moderately deep seas. During the Lower Bajocian, the area that is now France formed part of a broad marine realm connected to the wider Tethyan and European seas. These waters supported ammonites, belemnites, bivalves, brachiopods, gastropods, echinoids, fish, and other marine organisms.After death, ammonite shells settled onto the sea floor, where they could become buried in fine sediment. Over millions of years, compaction, mineral-rich groundwater, and natural geological processes transformed these remains into fossils. Later uplift and erosion exposed the fossil-bearing layers, allowing specimens such as this to be discovered and collected.MORPHOLOGY AND NATURAL FEATURESHudlestonia ammonites are appreciated for their classic coiled cephalopod form and their connection to Middle Jurassic ammonite faunas. Like other ammonites, the shell grew in a planispiral coil, with each whorl recording a stage of the animal’s growth. Features such as whorl profile, umbilicus width, ribbing, shell compression, chamber structure, and suture pattern are important in ammonite identification.Depending on preservation, this specimen may show natural shell curvature, ribbing or growth lines, chamber traces, mineralisation, matrix, surface texture, colour variation, or natural geological wear. These details are part of the fossil’s individual history and make each genuine ammonite unique. Please use the photograph to view the exact visible features of this particular specimen, as the image shows the actual fossil supplied.ANCIENT MARINE LIFEDuring life, Hudlestonia affinis would have been part of a diverse Middle Jurassic marine ecosystem. Ammonites were active swimming animals, using their chambered shells to control buoyancy while moving through the water. They likely fed on small marine organisms or scavenged available food, while also forming part of the food chain for larger predators such as fish and marine reptiles.The coiled shell was both protective and functional, allowing the ammonite to grow while maintaining balance in the water. Once the animal died, its shell became part of the sea-floor sediment and began the long process of fossilisation, preserving a direct link to the ancient Jurassic seas of France.COLLECTOR DISPLAY AND AUTHENTICITYThis Hudlestonia affinis ammonite fossil from France is ideal for fossil collectors, geology enthusiasts, natural history displays, educational collections, cabinet specimens, and anyone interested in genuine Jurassic fossils. It is especially suitable for collectors of ammonites, fossil cephalopods, French fossils, Middle Jurassic specimens, Lower Bajocian fossils, and ancient marine life.The fossil shown in the photograph is the actual specimen you will receive. Please check the photo carefully for full sizing and condition details, including any natural cracks, matrix, mineralisation, colour variation, preparation marks, surface wear, or other natural features. These characteristics are normal in genuine fossils and help demonstrate their long geological history.INCLUDED WITH THIS SPECIMENYour fossil will be supplied as a genuine specimen with a Certificate of Authenticity lifetime guarantee generic card. This makes it suitable for personal collecting, educational use, geology teaching, natural history display, or as a thoughtful gift for fossil lovers, palaeontology enthusiasts, students, teachers, and collectors of ancient marine specimens.
Middle Jurassic, Lower Bajocian of France. This carefully chosen fossil specimen has been selected for its natural fossil character, geological interest, and classic Jurassic display appeal. The photograph shows the actual specimen you will receive, so please refer to the photo for the full sizing, proportions, preservation, colour, surface texture, matrix, and overall condition of this individual piece.This fossil is supplied with a Certificate of Authenticity lifetime guarantee generic card, giving confidence that the specimen is a genuine fossil and not a modern replica.SPECIES AND FOSSIL TYPEHudlestonia affinis is an extinct ammonite species, a marine cephalopod that lived in ancient seas during the Jurassic Period. Ammonites were related to modern squid, cuttlefish, octopus, and nautilus, although they lived within coiled, chambered shells. The living animal occupied the final outer body chamber, while the earlier internal chambers helped regulate buoyancy, allowing the ammonite to move through the water column.Hudlestonia belongs to the ammonite order Ammonitida, a major group of Jurassic and Cretaceous ammonites known for their scientific importance and wide variety of shell forms. Ammonites such as Hudlestonia affinis are highly collectable because they combine an attractive natural spiral shape with palaeontological value. Their changing forms through time make them useful fossils for understanding and comparing Jurassic marine rock layers.MIDDLE JURASSIC LOWER BAJOCIAN AGEThis fossil dates from the Lower Bajocian Stage of the Middle Jurassic, approximately 170 million years old. The Bajocian was an important interval in ammonite evolution, following the Aalenian and preceding the Bathonian. During this time, ammonite faunas diversified in warm marine environments across Europe, leaving behind an exceptional fossil record in limestones, marls, clays, and other sedimentary rocks.The Lower Bajocian is especially significant to fossil collectors and geologists because many ammonite species evolved rapidly during this stage. These fossils can help mark detailed time intervals within the Jurassic, making them valuable not only as display specimens but also as examples of ancient marine biostratigraphy.FRENCH JURASSIC GEOLOGYFrance has a rich and important Jurassic fossil record, with many regions preserving marine deposits formed when much of Europe was covered by shallow to moderately deep seas. During the Lower Bajocian, the area that is now France formed part of a broad marine realm connected to the wider Tethyan and European seas. These waters supported ammonites, belemnites, bivalves, brachiopods, gastropods, echinoids, fish, and other marine organisms.After death, ammonite shells settled onto the sea floor, where they could become buried in fine sediment. Over millions of years, compaction, mineral-rich groundwater, and natural geological processes transformed these remains into fossils. Later uplift and erosion exposed the fossil-bearing layers, allowing specimens such as this to be discovered and collected.MORPHOLOGY AND NATURAL FEATURESHudlestonia ammonites are appreciated for their classic coiled cephalopod form and their connection to Middle Jurassic ammonite faunas. Like other ammonites, the shell grew in a planispiral coil, with each whorl recording a stage of the animal’s growth. Features such as whorl profile, umbilicus width, ribbing, shell compression, chamber structure, and suture pattern are important in ammonite identification.Depending on preservation, this specimen may show natural shell curvature, ribbing or growth lines, chamber traces, mineralisation, matrix, surface texture, colour variation, or natural geological wear. These details are part of the fossil’s individual history and make each genuine ammonite unique. Please use the photograph to view the exact visible features of this particular specimen, as the image shows the actual fossil supplied.ANCIENT MARINE LIFEDuring life, Hudlestonia affinis would have been part of a diverse Middle Jurassic marine ecosystem. Ammonites were active swimming animals, using their chambered shells to control buoyancy while moving through the water. They likely fed on small marine organisms or scavenged available food, while also forming part of the food chain for larger predators such as fish and marine reptiles.The coiled shell was both protective and functional, allowing the ammonite to grow while maintaining balance in the water. Once the animal died, its shell became part of the sea-floor sediment and began the long process of fossilisation, preserving a direct link to the ancient Jurassic seas of France.COLLECTOR DISPLAY AND AUTHENTICITYThis Hudlestonia affinis ammonite fossil from France is ideal for fossil collectors, geology enthusiasts, natural history displays, educational collections, cabinet specimens, and anyone interested in genuine Jurassic fossils. It is especially suitable for collectors of ammonites, fossil cephalopods, French fossils, Middle Jurassic specimens, Lower Bajocian fossils, and ancient marine life.The fossil shown in the photograph is the actual specimen you will receive. Please check the photo carefully for full sizing and condition details, including any natural cracks, matrix, mineralisation, colour variation, preparation marks, surface wear, or other natural features. These characteristics are normal in genuine fossils and help demonstrate their long geological history.INCLUDED WITH THIS SPECIMENYour fossil will be supplied as a genuine specimen with a Certificate of Authenticity lifetime guarantee generic card. This makes it suitable for personal collecting, educational use, geology teaching, natural history display, or as a thoughtful gift for fossil lovers, palaeontology enthusiasts, students, teachers, and collectors of ancient marine specimens.
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