Discohoplites coelonotus Ammonite Fossil Rare Albian Cretaceous France Genuine COA

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Discohoplites coelonotus Ammonite Fossil Rare Albian Cretaceous France Genuine COA

Rare Discohoplites coelonotus Ammonite Fossil Albian Stage Cretaceous France Authentic Specimen with Certificate of Authenticity

Long Description

Rare Discohoplites coelonotus Ammonite Fossil from France

This is a rare and genuine Discohoplites coelonotus ammonite fossil, originating from the Albian Stage of the Lower Cretaceous, France. At over 100 million years old, this specimen represents a fascinating period in Earth’s history when ammonites thrived in warm marine environments. Each fossil we supply is an authentic piece of natural history, and this example comes with a Certificate of Authenticity. The photographs provided show the exact specimen you will receive, with a 1 cm scale cube included for precise sizing.

Geological Background: Albian Stage of the Cretaceous

The Albian Stage (approximately 113–100 million years ago) is part of the Lower Cretaceous period, characterised by widespread marine transgressions and the diversification of many ammonite groups. France was submerged beneath shallow epicontinental seas, where fine sediments accumulated, providing ideal conditions for fossil preservation.

The Discohoplites genus is an important member of the Hoplitidae family, often used as a marker in stratigraphy due to its distinctive morphology and restricted stratigraphic range. Fossils from this genus play a critical role in understanding the biostratigraphy of the Albian and help correlate deposits across Europe and beyond.

Scientific Classification

• Fossil Type: Ammonite
• Genus: Discohoplites
• Species: coelonotus
• Order: Ammonitida
• Superfamily: Hoplitaceae
• Family: Hoplitidae
• Geological Age: Albian Stage, Lower Cretaceous (113–100 million years ago)
• Locality: France

Morphological Features of Discohoplites coelonotus

The Discohoplites coelonotus ammonite displays several diagnostic features that make it both scientifically valuable and visually striking:

• Compressed discoidal shell with a relatively flat profile, giving the genus its name “Discohoplites.”
• Fine, dense ribbing covering the flanks, often bifurcating or intercalating as they approach the outer whorl.
• Strong ventral keel, sometimes bordered by subtle grooves, enhancing hydrodynamic efficiency.
• Planispiral coiling, with whorls overlapping neatly to form a symmetrical shell.
• Ornamentation that reflects adaptation to a nektonic lifestyle in mid-water marine environments.

These traits distinguish D. coelonotus from other related Hoplitids and make it a significant index fossil for Albian deposits.

Paleoecological Insights

Ammonites such as Discohoplites coelonotus were active nektonic predators, hunting small molluscs, crustaceans, and planktonic organisms. Their streamlined shells and buoyant chamber systems enabled them to navigate effectively in the open seas.

The Albian seas of France were part of a warm, shallow marine environment, where fine-grained sediments preserved marine life in exceptional detail. Ammonites occupied a crucial role in these ecosystems, both as predators and as prey for larger marine reptiles like plesiosaurs.

Collector and Display Value

This fossil is not only a piece of ancient natural history but also a desirable collector’s specimen. Discohoplites coelonotus is relatively rare compared to other ammonite genera, making well-preserved examples particularly sought after. Its finely ribbed ornamentation and distinct discoidal form give it excellent aesthetic appeal for display, while its scientific significance enhances its value for serious collectors and educational purposes.

Specimens such as this are ideal for fossil enthusiasts, collectors of French ammonites, or those interested in the Cretaceous period. Its rarity and well-defined features ensure it will make a striking addition to any fossil collection.

Key Details

• Species: Discohoplites coelonotus
• Age: Albian Stage, Lower Cretaceous (113–100 million years ago)
• Locality: France
• Features: Discoidal shell, fine ribbing, strong keel
• Authenticity: 100% genuine specimen with Certificate of Authenticity
• Exact Specimen: Photographs show the actual fossil you will receive
• Scale: 1 cm reference cube shown in photos

This rare Discohoplites coelonotus ammonite fossil from France offers both scientific importance and aesthetic beauty, making it a remarkable addition to any fossil collection.