Clydoniceras Ammonite Fossil Jurassic Germany Genuine COA Card Collector Piece – Upper Bathonian Display Specimen

Description

Clydoniceras sp. Ammonite Fossil from Germany

This is a genuine Clydoniceras sp. ammonite fossil from the Middle Jurassic, Upper Bathonian stage, collected from Germany. This carefully chosen fossil is a desirable European Jurassic marine cephalopod specimen, selected for its natural form, geological interest, and display appeal. It is supplied with a Certificate of Authenticity lifetime guarantee generic card, making it a trusted addition to any fossil collection, natural history cabinet, educational geology display, 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 Location

This ammonite dates to the Upper Bathonian, part of the Middle Jurassic Period, approximately 166 million years old. The Bathonian was an important interval in ammonite evolution, with many distinctive forms developing across the warm marine environments of Europe. Ammonites from this stage are especially valued because they are widely used in biostratigraphy, helping geologists identify and compare Jurassic rock layers across different regions.

Germany is well known for its rich Jurassic fossil deposits, including limestones, marls, clays, and iron-rich marine sediments that preserve ammonites and other ancient sea life. During the Middle Jurassic, large areas of what is now Germany were covered by shallow to moderately deep seas connected to wider European marine basins. These environments supported a diverse ecosystem of ammonites, belemnites, bivalves, brachiopods, gastropods, crinoids, echinoids, fish, and marine reptiles.

Fossil Type and Identification

This specimen is identified as Clydoniceras sp., an extinct ammonite from the Middle Jurassic. The “sp.” designation means the fossil has been identified to genus level, while the exact species is left open. This is commonly used for ammonite fossils when preservation, natural variation, or visible diagnostic features do not allow a confident species-level assignment.

Clydoniceras is a recognised Bathonian ammonite genus and is associated with the ammonoid cephalopods, a group of marine molluscs related to modern squid, cuttlefish, octopus, and nautilus. Ammonites had coiled external shells divided into internal chambers. The living animal occupied the outer body chamber, while earlier chambers helped regulate buoyancy, allowing it to move through the water column.

Morphology and Notable Features

Clydoniceras ammonites are appreciated for their classic Jurassic spiral form and attractive shell structure. The shell is typically planispiral, with whorls arranged in a neat coil around the centre. Depending on preservation, specimens may show visible whorl structure, shell surface detail, ribbing or growth lines, a defined umbilical area, and natural mineralised texture.

The coiled shell records the animal’s growth throughout life, with each new whorl representing a later stage of development. Internal walls known as septa divided the shell into chambers, and the lines where these septa met the shell surface formed suture patterns. These sutures are among the features used by palaeontologists to classify ammonites and are part of what makes ammonites so scientifically important.

As a genuine fossil, this specimen may show natural matrix, fossil shell texture, mineralisation, colour variation, weathering, small chips, cracks, or areas of wear caused by fossilisation and geological history. These features are part of the fossil’s authenticity and individual character. The photo shows the exact fossil being offered, allowing the buyer to view the preservation, shape, size, condition, and display quality before purchase.

Middle Jurassic Marine Environment

This Clydoniceras ammonite lived in a Jurassic sea that covered parts of Germany during the Upper Bathonian. These ancient marine environments were rich in life, with ammonites and belemnites swimming through the water column while bivalves, brachiopods, crinoids, and echinoids lived on or within the seabed. Fish and marine reptiles also formed part of the wider Jurassic ecosystem.

Ammonites were active swimming or drifting animals, likely feeding on small prey using tentacles. After death, the shell could sink to the seabed and become buried in sediment. Over millions of years, mineralisation, compaction, and geological change transformed the remains into a fossil. This specimen is a direct link to the marine world of the Middle Jurassic, when dinosaurs lived on land and ammonites were among the most successful animals in the oceans.

Authenticity and Collectability

This Clydoniceras sp. ammonite fossil is a genuine specimen from Germany, dating to the Upper Bathonian of the Middle Jurassic, and includes a Certificate of Authenticity lifetime guarantee generic card. It is suitable for collectors of German fossils, Jurassic ammonites, Middle Jurassic marine fossils, natural history specimens, educational geology pieces, and display fossils.

The fossil shown in the photo is the actual specimen you will receive.