Description
Genuine Lamberticeras lamberti Fossil Ammonite
This exceptional specimen is a Lamberticeras lamberti fossil ammonite, dating to the Upper Callovian Stage of the Jurassic Period. It was discovered at Villeurs, France, a site renowned for producing ammonites of remarkable preservation and historical scientific significance. The fossil showcases the distinctive ribbed ornamentation and form characteristic of the species, making it both a beautiful collector’s item and an important piece for scientific reference.
Every specimen offered is guaranteed to be 100% authentic and comes with a Certificate of Authenticity. The photographs provided show the actual fossil you will receive, taken with a scale cube marked in 1 cm squares for precise size comparison.
Geological Age and Locality
This ammonite originates from the Upper Callovian Stage of the Middle Jurassic, around 164–161 million years ago. During this time, the region that is now Villeurs in France lay beneath shallow epicontinental seas. These warm, nutrient-rich waters provided an ideal environment for the flourishing of ammonites, belemnites, marine reptiles, and a diverse range of molluscs.
The Upper Callovian is particularly important in the study of Jurassic ammonites because of its rich fossil record and well-established biozones. Lamberticeras lamberti is one of the key ammonites used for stratigraphic correlation, providing a reliable means for geologists to date and compare sedimentary layers across Europe.
Scientific Classification
- Species: Lamberticeras lamberti
- Genus: Lamberticeras
- Family: Cardioceratidae
- Superfamily: Stephanoceratoidea
- Order: Ammonitida
- Class: Cephalopoda
- Age: Upper Callovian, Middle Jurassic (~164–161 million years ago)
- Locality: Villeurs, France
Morphological Features
The Lamberticeras lamberti ammonite is distinguished by its strong ribbing, which runs prominently across its whorls, often bifurcating as they extend outward. Its shell is moderately involute, with inner whorls partially covered but still visible, and the outer whorl displaying a pronounced keel. These features give the fossil a striking appearance and make it easy to recognise within its genus.
The sutures of Lamberticeras are highly intricate, a trait common among ammonites of the Cardioceratidae family, adding to their scientific interest and visual appeal. These sutural patterns, combined with its ribbing, have made Lamberticeras lamberti a benchmark species in Jurassic ammonite studies.
Paleoenvironment and Depositional Setting
The seas of the Upper Callovian in France represented a thriving ecosystem. Lamberticeras lamberti would have lived as an active predator, using its tentacles to capture small crustaceans, fish, and other marine invertebrates. Like other ammonites, it relied on the buoyant chambers within its coiled shell for movement and stability in the water column.
Villeurs is known for its fine-grained marine sediments, which provided excellent conditions for fossil preservation. Rapid burial in these sediments allowed delicate shell ornamentation and structural details to remain intact over millions of years, resulting in the high-quality specimens admired today.
Collectability and Significance
This Lamberticeras lamberti fossil ammonite from Villeurs, France is not only a striking natural history specimen but also a scientifically significant fossil. Its role as an index fossil in stratigraphy enhances its academic value, while its bold ribbing and defined morphology make it a display-worthy piece for collectors.
- Type: Fossil Ammonite – Lamberticeras lamberti
- Age: Upper Callovian, Jurassic (~164–161 million years ago)
- Origin: Villeurs, France
- Scale: 1 cm cube shown for accurate sizing (see photographs)
- Authenticity: Guaranteed genuine with Certificate of Authenticity
- Specimen Shown: The exact ammonite pictured is the specimen you will receive
Owning a Lamberticeras lamberti ammonite offers the chance to connect with the rich geological past of the Jurassic seas of France. This specimen is a superb addition to any collection, whether for its display beauty, its scientific value, or its role as a genuine 160-million-year-old relic of Earth’s natural history.
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