Staufenia Ammonite Fossil Whitby UK Jurassic Genuine COA Collector Specimen Aalenian North Yorkshire Natural Display Fossil
£ 36.00
GENUINE STAUFENIA SP. AMMONITE FOSSILThis listing is for a genuine Staufenia sp. ammonite fossil from the Middle
Jurassic, Aalenian Stage, collected from the famous fossil locality of Whitby, North Yorkshire, UK. This carefully chosen fossil specimen has been selected for its natural character, geological interest, and classic British Jurassic appeal. The photograph shows the actual specimen you will receive, so please refer to the photo for the full sizing, proportions, preservation, colour, matrix, surface detail, and overall condition of this individual fossil.This fossil is supplied with a Certificate of Authenticity lifetime guarantee generic card, giving confidence that the piece is a genuine fossil specimen and not a modern replica.SPECIES AND FOSSIL TYPEStaufenia sp. is an extinct ammonite, a marine cephalopod related to modern squid, cuttlefish, octopus, and nautilus. Ammonites lived inside coiled, chambered shells, with the animal occupying the final outer body chamber during life. The earlier chambers were used for buoyancy control, allowing the ammonite to move through the water column in the ancient Jurassic sea.This fossil is identified to genus level as Staufenia sp., meaning it belongs to the genus Staufenia, while the exact species is not specified. Staufenia is an important Jurassic ammonite genus associated with Aalenian marine deposits. Ammonites such as this are highly valued by collectors because they combine attractive natural spiral form with strong geological and palaeontological interest.MIDDLE JURASSIC AALENIAN AGEThis fossil dates from the Aalenian Stage of the Middle Jurassic, approximately 174 to 170 million years old. The Aalenian marks the beginning of the Middle Jurassic and was a time of significant ammonite evolution following the late Early Jurassic. Ammonites from this interval are especially useful in geology because many genera evolved quickly and can help correlate rock layers across different regions.During the Aalenian, the area that is now North Yorkshire was not dry land as it is today. It was part of a marine environment, with sediment accumulating on the sea floor and preserving the remains of ammonites, belemnites, bivalves, fossil wood, fish remains, and other ancient sea life. Over millions of years, these sediments were compacted, mineralised, uplifted, and eventually exposed along the Yorkshire coast.WHITBY AND NORTH YORKSHIRE GEOLOGYWhitby is one of the most famous fossil localities in Britain and is internationally known for its Jurassic marine fossils. The cliffs and foreshore around Whitby and the wider Yorkshire Coast have produced ammonites for centuries, making the area highly desirable for fossil collectors, geology students, educators, and natural history enthusiasts.The Jurassic rocks of the Whitby area include fossil-bearing shales, mudstones, ironstone nodules, and associated marine sediments. These deposits formed in ancient seas that supported a rich ecosystem of cephalopods and other marine organisms. Ammonites from Whitby are especially popular because of their strong connection with British fossil collecting history and their attractive natural preservation.MORPHOLOGY AND NATURAL FEATURESStaufenia ammonites are typically recognised as coiled Jurassic cephalopods with a compact ammonite form. Like other ammonites, the shell grew in a planispiral coil, with each new whorl wrapping around the earlier growth stages. Features such as whorl shape, umbilicus width, shell compression, ribbing, growth lines, suture pattern, and body chamber structure are important in ammonite identification.Depending on preservation, this specimen may show natural shell curvature, chamber traces, mineralisation, matrix, surface texture, colour variation, or geological wear from burial and exposure. These details are part of the fossil’s natural history and make each specimen unique. Please use the photograph to view the exact visible features of this particular fossil, as the image shows the actual specimen supplied.ANCIENT JURASSIC MARINE LIFEDuring life, this Staufenia ammonite would have been part of a diverse Middle Jurassic marine ecosystem. Ammonites were active swimming animals that used their chambered shells to regulate buoyancy. 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 ammonite shell was both protective and functional, allowing the animal to grow while maintaining balance in the water. After death, the shell settled onto the sea floor, where it was gradually buried by sediment. Over immense geological time, mineral-rich groundwater and pressure transformed the remains into the fossil seen today.COLLECTOR DISPLAY AND AUTHENTICITYThis Staufenia sp. ammonite fossil from Whitby is ideal for fossil collectors, geology enthusiasts, natural history displays, educational collections, cabinet specimens, and anyone interested in genuine British Jurassic fossils. It is particularly suitable for collectors of ammonites, fossil cephalopods, Yorkshire Coast fossils, Middle Jurassic specimens, and classic UK palaeontology pieces.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, and overall preservation. These natural features 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 life.
Jurassic, Aalenian Stage, collected from the famous fossil locality of Whitby, North Yorkshire, UK. This carefully chosen fossil specimen has been selected for its natural character, geological interest, and classic British Jurassic appeal. The photograph shows the actual specimen you will receive, so please refer to the photo for the full sizing, proportions, preservation, colour, matrix, surface detail, and overall condition of this individual fossil.This fossil is supplied with a Certificate of Authenticity lifetime guarantee generic card, giving confidence that the piece is a genuine fossil specimen and not a modern replica.SPECIES AND FOSSIL TYPEStaufenia sp. is an extinct ammonite, a marine cephalopod related to modern squid, cuttlefish, octopus, and nautilus. Ammonites lived inside coiled, chambered shells, with the animal occupying the final outer body chamber during life. The earlier chambers were used for buoyancy control, allowing the ammonite to move through the water column in the ancient Jurassic sea.This fossil is identified to genus level as Staufenia sp., meaning it belongs to the genus Staufenia, while the exact species is not specified. Staufenia is an important Jurassic ammonite genus associated with Aalenian marine deposits. Ammonites such as this are highly valued by collectors because they combine attractive natural spiral form with strong geological and palaeontological interest.MIDDLE JURASSIC AALENIAN AGEThis fossil dates from the Aalenian Stage of the Middle Jurassic, approximately 174 to 170 million years old. The Aalenian marks the beginning of the Middle Jurassic and was a time of significant ammonite evolution following the late Early Jurassic. Ammonites from this interval are especially useful in geology because many genera evolved quickly and can help correlate rock layers across different regions.During the Aalenian, the area that is now North Yorkshire was not dry land as it is today. It was part of a marine environment, with sediment accumulating on the sea floor and preserving the remains of ammonites, belemnites, bivalves, fossil wood, fish remains, and other ancient sea life. Over millions of years, these sediments were compacted, mineralised, uplifted, and eventually exposed along the Yorkshire coast.WHITBY AND NORTH YORKSHIRE GEOLOGYWhitby is one of the most famous fossil localities in Britain and is internationally known for its Jurassic marine fossils. The cliffs and foreshore around Whitby and the wider Yorkshire Coast have produced ammonites for centuries, making the area highly desirable for fossil collectors, geology students, educators, and natural history enthusiasts.The Jurassic rocks of the Whitby area include fossil-bearing shales, mudstones, ironstone nodules, and associated marine sediments. These deposits formed in ancient seas that supported a rich ecosystem of cephalopods and other marine organisms. Ammonites from Whitby are especially popular because of their strong connection with British fossil collecting history and their attractive natural preservation.MORPHOLOGY AND NATURAL FEATURESStaufenia ammonites are typically recognised as coiled Jurassic cephalopods with a compact ammonite form. Like other ammonites, the shell grew in a planispiral coil, with each new whorl wrapping around the earlier growth stages. Features such as whorl shape, umbilicus width, shell compression, ribbing, growth lines, suture pattern, and body chamber structure are important in ammonite identification.Depending on preservation, this specimen may show natural shell curvature, chamber traces, mineralisation, matrix, surface texture, colour variation, or geological wear from burial and exposure. These details are part of the fossil’s natural history and make each specimen unique. Please use the photograph to view the exact visible features of this particular fossil, as the image shows the actual specimen supplied.ANCIENT JURASSIC MARINE LIFEDuring life, this Staufenia ammonite would have been part of a diverse Middle Jurassic marine ecosystem. Ammonites were active swimming animals that used their chambered shells to regulate buoyancy. 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 ammonite shell was both protective and functional, allowing the animal to grow while maintaining balance in the water. After death, the shell settled onto the sea floor, where it was gradually buried by sediment. Over immense geological time, mineral-rich groundwater and pressure transformed the remains into the fossil seen today.COLLECTOR DISPLAY AND AUTHENTICITYThis Staufenia sp. ammonite fossil from Whitby is ideal for fossil collectors, geology enthusiasts, natural history displays, educational collections, cabinet specimens, and anyone interested in genuine British Jurassic fossils. It is particularly suitable for collectors of ammonites, fossil cephalopods, Yorkshire Coast fossils, Middle Jurassic specimens, and classic UK palaeontology pieces.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, and overall preservation. These natural features 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 life.
