Lamberticeras lamberti Iridescent Fossil Ammonite Upper Callovian Jurassic Volga Russia

Description

Rare Iridescent Lamberticeras lamberti Ammonite Fossil from Russia

This listing offers a stunning Lamberticeras lamberti fossil ammonite showcasing natural iridescence, dating to the Upper Callovian stage of the Jurassic period, approximately 164 to 161 million years ago. Found in the Volga region of Russia, this specimen represents both a scientifically significant and visually remarkable example of Jurassic ammonites. Its lustrous iridescent shell makes it not only a collector’s fossil but also a striking natural display piece. The fossil offered here is the exact specimen photographed, with a 1 cm scale cube included for accurate sizing. Every piece comes with a Certificate of Authenticity, guaranteeing it as a genuine specimen.

Geological Context: The Upper Callovian Seas

The Upper Callovian forms part of the Middle Jurassic, a time when warm, shallow epicontinental seas spread across much of Eurasia. The Volga region of Russia is internationally renowned for its well-preserved ammonite assemblages, particularly those displaying remarkable shell preservation and occasional natural iridescence. These marine shales and limestones created the perfect depositional environment for the preservation of fine shell details.

Ammonites from the Callovian are particularly important for biostratigraphy, with species such as Lamberticeras lamberti acting as useful zone fossils to date marine sequences across Europe and Russia. Their abundance, distinct morphology, and stratigraphic value have made them vital in paleontological research.

Taxonomy and Classification

• Genus: Lamberticeras
• Species: lamberti
• Family: Cardioceratidae
• Superfamily: Stephanoceratoidea
• Order: Ammonitida
• Age: Upper Callovian, Jurassic (c. 164–161 million years ago)
• Locality: Volga River region, Russia

This ammonite belongs to the Cardioceratidae, a group of strongly ribbed Jurassic ammonites within the Stephanoceratoidea.

Morphological Features

The Lamberticeras lamberti ammonite is distinguished by several key features:

• Strong ribbing running across the flanks, giving a bold sculptural appearance.
• Distinctive tuberculation on rib intersections, adding texture to the shell’s ornamentation.
• Moderately involute coiling, with inner whorls partly visible.
• Flattened venter with rib terminations, characteristic of the genus.
• Natural iridescence, caused by the preservation of aragonite layers, producing shimmering colours that enhance the fossil’s beauty and rarity.

These morphological traits make it instantly recognisable among Jurassic ammonites and particularly prized by collectors.

Scientific and Collecting Importance

Ammonites such as Lamberticeras lamberti are significant both as biostratigraphic markers and as spectacular collector specimens. Their presence defines part of the Upper Callovian stratigraphy and helps correlate marine successions across northern Europe and Russia. The natural iridescence seen in this specimen further elevates its importance, as not all preserved ammonites retain this striking visual quality.

Collectors will appreciate both its scientific role and its natural aesthetic appeal, making it a unique piece for any fossil collection. Its iridescent surface reflects the intricate beauty of ancient marine life, preserved for millions of years beneath Jurassic seas.

Key Details

• Fossil Type: Ammonite
• Species: Lamberticeras lamberti
• Geological Age: Upper Callovian, Jurassic (c. 164–161 million years ago)
• Location: Volga River region, Russia
• Family: Cardioceratidae
• Features: Strong ribbing, tuberculation, natural iridescence
• Authenticity: Guaranteed genuine with Certificate of Authenticity

Authenticity and Guarantee

We only supply authentic fossils, and this Lamberticeras lamberti ammonite from the Volga region of Russia is no exception. Every specimen comes with a Certificate of Authenticity and has been carefully selected for both scientific and aesthetic value. This ammonite represents an exceptional opportunity to own a rare iridescent ammonite fossil from the Jurassic seas of Russia, preserved in beautiful detail for over 160 million years.