Chondroceras evolvescens Ammonite Fossil Jurassic France Genuine COA Card - Middle Bajocian Normandy Collector Specimen
£ 48.00
Chondroceras evolvescens Ammonite Fossil from Normandy, FranceThis is a genuine Chondroceras evolvescens ammonite fossil from the Middle
Jurassic, Middle Bajocian stage, collected from Évrecy, Calvados, Normandy, France. This carefully chosen fossil is a desirable European Jurassic marine cephalopod specimen, selected for its natural form, geological interest, and collectable display appeal. It is supplied with a Certificate of Authenticity lifetime guarantee generic card, making it a trusted addition to an ammonite collection, fossil cabinet, natural history display, educational geology collection, or prehistoric gift selection.The photograph shows the actual fossil specimen you will receive. Full sizing and scale can be seen in the photo.Geological Age and LocalityThis ammonite dates to the Middle Bajocian, part of the Middle Jurassic Period, approximately 170 million years old. The Bajocian was an important interval in ammonite evolution, with many distinctive forms spreading through the warm marine seas of Europe. Ammonites from this stage are especially valued by collectors and geologists because their rapidly changing shell forms help date and correlate Jurassic rock layers.The specimen comes from Évrecy in Calvados, Normandy, France, a region known for its fossil-bearing Jurassic sedimentary rocks. During the Middle Jurassic, Normandy was covered by shallow to moderately deep marine environments connected to wider European seaways. These ancient seas deposited limestones, marls, clays, and shell-rich sediments, preserving a diverse fossil record of ammonites, belemnites, bivalves, brachiopods, gastropods, echinoids, crinoids, fish remains, and other prehistoric marine life.Fossil Type and SpeciesThis specimen is identified as Chondroceras evolvescens, an extinct ammonite species from the Middle Bajocian. Ammonites were marine molluscs related to modern squid, cuttlefish, octopus, and nautilus. They had hard external shells divided internally into chambers. The living animal occupied the outer body chamber, while earlier chambers helped regulate buoyancy, allowing the ammonite to move through the water column.Chondroceras is a Jurassic ammonite genus associated with the diverse Bajocian ammonite faunas of Europe. Like other ammonites, its shell form, whorl shape, ribbing, and growth features are important for identification and study. Fossils such as this are valued both as display pieces and as examples of the marine biodiversity that flourished during the Middle Jurassic.Morphology and Notable FeaturesChondroceras ammonites are appreciated for their classic coiled ammonite form and attractive Jurassic ornamentation. The shell is typically planispiral, with whorls arranged around a central umbilicus. Depending on preservation, specimens may show visible whorl structure, ribbing, natural shell surface, mineralisation, and details that record the growth of the animal’s shell.The ribbing and whorl profile give the fossil visual texture and help show how the shell developed through life. The internal shell was divided by chamber walls known as septa, and the lines where these septa met the outer shell formed suture patterns. These features are part of what makes ammonites scientifically important and highly collectable.As a genuine fossil, this specimen may show natural matrix, fossil shell detail, mineral staining, colour variation, weathering, small chips, cracks, or areas of natural wear caused by fossilisation and geological history. These natural characteristics are normal for authentic fossils and add to the individuality of the piece. The photo shows the exact specimen being offered, allowing the buyer to view its preservation, condition, size, and display quality before purchase.Middle Jurassic Marine EnvironmentThis Chondroceras evolvescens ammonite lived in the warm marine waters that covered Normandy during the Middle Bajocian. These seas supported a rich ecosystem of swimming cephalopods, seabed invertebrates, fish, and other marine organisms. Ammonites were active swimming or drifting animals, likely feeding on small prey in the water column using tentacles.After death, the ammonite shell could settle onto the seabed and become buried by sediment. Over millions of years, compaction, mineralisation, and geological change transformed the shell and surrounding sediment into fossil-bearing rock. This fossil is a direct link to the Middle Jurassic seas of France, when dinosaurs lived on land and ammonites were among the most successful animals in the oceans.Authenticity and CollectabilityThis Chondroceras evolvescens ammonite fossil is a genuine specimen from Évrecy, Calvados, Normandy, France, dating to the Middle Bajocian stage of the Middle Jurassic, and includes a Certificate of Authenticity lifetime guarantee generic card. It is suitable for collectors of French fossils, Jurassic ammonites, Bajocian fossils, Middle Jurassic marine fossils, European fossils, natural history specimens, educational geology pieces, and display fossils.This carefully selected fossil includes a Certificate of Authenticity lifetime guarantee generic card, and the fossil shown in the photo is the actual specimen you will receive.
Jurassic, Middle Bajocian stage, collected from Évrecy, Calvados, Normandy, France. This carefully chosen fossil is a desirable European Jurassic marine cephalopod specimen, selected for its natural form, geological interest, and collectable display appeal. It is supplied with a Certificate of Authenticity lifetime guarantee generic card, making it a trusted addition to an ammonite collection, fossil cabinet, natural history display, educational geology collection, or prehistoric gift selection.The photograph shows the actual fossil specimen you will receive. Full sizing and scale can be seen in the photo.Geological Age and LocalityThis ammonite dates to the Middle Bajocian, part of the Middle Jurassic Period, approximately 170 million years old. The Bajocian was an important interval in ammonite evolution, with many distinctive forms spreading through the warm marine seas of Europe. Ammonites from this stage are especially valued by collectors and geologists because their rapidly changing shell forms help date and correlate Jurassic rock layers.The specimen comes from Évrecy in Calvados, Normandy, France, a region known for its fossil-bearing Jurassic sedimentary rocks. During the Middle Jurassic, Normandy was covered by shallow to moderately deep marine environments connected to wider European seaways. These ancient seas deposited limestones, marls, clays, and shell-rich sediments, preserving a diverse fossil record of ammonites, belemnites, bivalves, brachiopods, gastropods, echinoids, crinoids, fish remains, and other prehistoric marine life.Fossil Type and SpeciesThis specimen is identified as Chondroceras evolvescens, an extinct ammonite species from the Middle Bajocian. Ammonites were marine molluscs related to modern squid, cuttlefish, octopus, and nautilus. They had hard external shells divided internally into chambers. The living animal occupied the outer body chamber, while earlier chambers helped regulate buoyancy, allowing the ammonite to move through the water column.Chondroceras is a Jurassic ammonite genus associated with the diverse Bajocian ammonite faunas of Europe. Like other ammonites, its shell form, whorl shape, ribbing, and growth features are important for identification and study. Fossils such as this are valued both as display pieces and as examples of the marine biodiversity that flourished during the Middle Jurassic.Morphology and Notable FeaturesChondroceras ammonites are appreciated for their classic coiled ammonite form and attractive Jurassic ornamentation. The shell is typically planispiral, with whorls arranged around a central umbilicus. Depending on preservation, specimens may show visible whorl structure, ribbing, natural shell surface, mineralisation, and details that record the growth of the animal’s shell.The ribbing and whorl profile give the fossil visual texture and help show how the shell developed through life. The internal shell was divided by chamber walls known as septa, and the lines where these septa met the outer shell formed suture patterns. These features are part of what makes ammonites scientifically important and highly collectable.As a genuine fossil, this specimen may show natural matrix, fossil shell detail, mineral staining, colour variation, weathering, small chips, cracks, or areas of natural wear caused by fossilisation and geological history. These natural characteristics are normal for authentic fossils and add to the individuality of the piece. The photo shows the exact specimen being offered, allowing the buyer to view its preservation, condition, size, and display quality before purchase.Middle Jurassic Marine EnvironmentThis Chondroceras evolvescens ammonite lived in the warm marine waters that covered Normandy during the Middle Bajocian. These seas supported a rich ecosystem of swimming cephalopods, seabed invertebrates, fish, and other marine organisms. Ammonites were active swimming or drifting animals, likely feeding on small prey in the water column using tentacles.After death, the ammonite shell could settle onto the seabed and become buried by sediment. Over millions of years, compaction, mineralisation, and geological change transformed the shell and surrounding sediment into fossil-bearing rock. This fossil is a direct link to the Middle Jurassic seas of France, when dinosaurs lived on land and ammonites were among the most successful animals in the oceans.Authenticity and CollectabilityThis Chondroceras evolvescens ammonite fossil is a genuine specimen from Évrecy, Calvados, Normandy, France, dating to the Middle Bajocian stage of the Middle Jurassic, and includes a Certificate of Authenticity lifetime guarantee generic card. It is suitable for collectors of French fossils, Jurassic ammonites, Bajocian fossils, Middle Jurassic marine fossils, European fossils, natural history specimens, educational geology pieces, and display fossils.This carefully selected fossil includes a Certificate of Authenticity lifetime guarantee generic card, and the fossil shown in the photo is the actual specimen you will receive.
