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RARE Epikosmoceras fuchzi Ammonite Fossil Middle Callovian Jurassic Ryazan Russia

RARE Epikosmoceras fuchzi Ammonite Fossil Middle Callovian Jurassic Ryazan Russia

£12.60

Rare Epikosmoceras fuchzi Ammonite Fossil

This listing presents a rare Epikosmoceras fuchzi ammonite fossil from the Middle Callovian stage of the Jurassic period, approximately 165 – 164 million years old. Collected in the world-renowned fossil-rich layers near Ryazan, Russia, this specimen represents a scientifically and aesthetically important ammonite that flourished in the warm Jurassic seas of Europe and Asia.

This specimen has been carefully selected for its preservation and authenticity. The photographs show the exact ammonite fossil you will receive, displayed alongside a 1 cm scale cube to provide accurate sizing. As with all of our specimens, this fossil is guaranteed to be 100% genuine and is accompanied by a Certificate of Authenticity.

Geological Context

The Middle Callovian represents an important division of the Middle Jurassic epoch, a time when shallow epicontinental seas extended over much of Europe and Western Russia. These seas created ideal conditions for the preservation of marine organisms, particularly ammonites, whose remains settled into fine sediments that later lithified into rock.

The Ryazan region has become a key fossil locality, especially for Callovian ammonites, due to the quality of preservation and abundance of species. Fossils from this site contribute greatly to the study of Jurassic paleontology, particularly the evolution, distribution, and classification of the family Kosmoceratidae.

Scientific Classification

  • Genus: Epikosmoceras
  • Species: Epikosmoceras fuchzi
  • Order: Ammonitida
  • Superfamily: Perisphinctoidea
  • Family: Kosmoceratidae
  • Age: Jurassic, Middle Callovian (approx. 165 – 164 million years ago)
  • Locality: Ryazan, Russia

Morphological Features

The genus Epikosmoceras is known for its robust and ornate shells, with features that are both scientifically diagnostic and visually striking. Characteristic traits of Epikosmoceras fuchzi include:

  • Evolute shell coiling, exposing earlier whorls for a broad display.
  • Strong ribbing, radiating across the whorls and often terminating in tubercles or nodes.
  • Ornamented flanks, with rib patterns that highlight growth stages and provide a textured appearance.
  • Complex suture lines, representing the chambered structure of the shell, designed for buoyancy regulation and structural strength.

These traits not only reveal important evolutionary adaptations but also enhance the fossil’s natural beauty, making it ideal for both collectors and display.

Paleoecology and Importance

Epikosmoceras belonged to the Kosmoceratidae, a family of ammonites that played a significant role in Jurassic marine ecosystems. They were active nektonic predators, using their chambered shells for buoyancy control, which allowed them to hunt smaller marine organisms such as crustaceans and mollusks.

From a geological perspective, Epikosmoceras fuchzi serves as a valuable index fossil, helping paleontologists to correlate rock layers across vast regions. The Callovian stage is particularly well-defined by the presence of ammonites such as this, making them crucial in the study of Jurassic stratigraphy and paleoenvironments.

Collector’s Value

This rare Epikosmoceras fuchzi ammonite fossil combines historical, scientific, and aesthetic value. Its distinct ribbing, structural features, and well-preserved shell represent not only a fascinating piece of Earth’s evolutionary history but also a striking natural specimen that can be appreciated in any fossil collection.

Collectors prize fossils from the Ryazan region for their exceptional preservation and rarity. This specimen is an excellent choice for paleontology enthusiasts, natural history collectors, or anyone seeking an authentic and beautiful reminder of life from the Jurassic seas.

Key Details

  • Species: Epikosmoceras fuchzi
  • Age: Middle Jurassic, Callovian (approx. 165 – 164 million years ago)
  • Family: Kosmoceratidae
  • Locality: Ryazan, Russia
  • Distinctive Features: Evolute coiling, strong ribbing, tuberculation, complex sutures
  • Authentic specimen with Certificate of Authenticity
  • Exact specimen photographed with 1 cm scale cube

This is a truly rare and scientifically important ammonite fossil, offering a remarkable glimpse into the rich marine ecosystems of the Jurassic period.

(Actual as seen)

Only 1 left in stock

SKU: SF0959 Category:

Description

Rare Epikosmoceras fuchzi Ammonite Fossil

This listing presents a rare Epikosmoceras fuchzi ammonite fossil from the Middle Callovian stage of the Jurassic period, approximately 165 – 164 million years old. Collected in the world-renowned fossil-rich layers near Ryazan, Russia, this specimen represents a scientifically and aesthetically important ammonite that flourished in the warm Jurassic seas of Europe and Asia.

This specimen has been carefully selected for its preservation and authenticity. The photographs show the exact ammonite fossil you will receive, displayed alongside a 1 cm scale cube to provide accurate sizing. As with all of our specimens, this fossil is guaranteed to be 100% genuine and is accompanied by a Certificate of Authenticity.

Geological Context

The Middle Callovian represents an important division of the Middle Jurassic epoch, a time when shallow epicontinental seas extended over much of Europe and Western Russia. These seas created ideal conditions for the preservation of marine organisms, particularly ammonites, whose remains settled into fine sediments that later lithified into rock.

The Ryazan region has become a key fossil locality, especially for Callovian ammonites, due to the quality of preservation and abundance of species. Fossils from this site contribute greatly to the study of Jurassic paleontology, particularly the evolution, distribution, and classification of the family Kosmoceratidae.

Scientific Classification

  • Genus: Epikosmoceras
  • Species: Epikosmoceras fuchzi
  • Order: Ammonitida
  • Superfamily: Perisphinctoidea
  • Family: Kosmoceratidae
  • Age: Jurassic, Middle Callovian (approx. 165 – 164 million years ago)
  • Locality: Ryazan, Russia

Morphological Features

The genus Epikosmoceras is known for its robust and ornate shells, with features that are both scientifically diagnostic and visually striking. Characteristic traits of Epikosmoceras fuchzi include:

  • Evolute shell coiling, exposing earlier whorls for a broad display.
  • Strong ribbing, radiating across the whorls and often terminating in tubercles or nodes.
  • Ornamented flanks, with rib patterns that highlight growth stages and provide a textured appearance.
  • Complex suture lines, representing the chambered structure of the shell, designed for buoyancy regulation and structural strength.

These traits not only reveal important evolutionary adaptations but also enhance the fossil’s natural beauty, making it ideal for both collectors and display.

Paleoecology and Importance

Epikosmoceras belonged to the Kosmoceratidae, a family of ammonites that played a significant role in Jurassic marine ecosystems. They were active nektonic predators, using their chambered shells for buoyancy control, which allowed them to hunt smaller marine organisms such as crustaceans and mollusks.

From a geological perspective, Epikosmoceras fuchzi serves as a valuable index fossil, helping paleontologists to correlate rock layers across vast regions. The Callovian stage is particularly well-defined by the presence of ammonites such as this, making them crucial in the study of Jurassic stratigraphy and paleoenvironments.

Collector’s Value

This rare Epikosmoceras fuchzi ammonite fossil combines historical, scientific, and aesthetic value. Its distinct ribbing, structural features, and well-preserved shell represent not only a fascinating piece of Earth’s evolutionary history but also a striking natural specimen that can be appreciated in any fossil collection.

Collectors prize fossils from the Ryazan region for their exceptional preservation and rarity. This specimen is an excellent choice for paleontology enthusiasts, natural history collectors, or anyone seeking an authentic and beautiful reminder of life from the Jurassic seas.

Key Details

  • Species: Epikosmoceras fuchzi
  • Age: Middle Jurassic, Callovian (approx. 165 – 164 million years ago)
  • Family: Kosmoceratidae
  • Locality: Ryazan, Russia
  • Distinctive Features: Evolute coiling, strong ribbing, tuberculation, complex sutures
  • Authentic specimen with Certificate of Authenticity
  • Exact specimen photographed with 1 cm scale cube

This is a truly rare and scientifically important ammonite fossil, offering a remarkable glimpse into the rich marine ecosystems of the Jurassic period.

Additional information

Era

Jurassic
Origin

Russia

Jurassic Information

The Jurassic Period (201–145 million years ago) was the golden age of dinosaurs, with iconic species like Brachiosaurus, Stegosaurus, and Allosaurus dominating the land. It was a time of warm, humid climates, with high sea levels that created vast shallow seas, supporting abundant marine reptiles, ammonites, and early coral reefs. The first birds, such as Archaeopteryx, evolved from small theropod dinosaurs, while early mammals remained small and nocturnal. Lush forests of cycads, conifers, and ferns covered the land, providing food for giant herbivores. The breakup of the supercontinent Pangaea accelerated, shaping Earth's geography and setting the stage for the diverse ecosystems of the Cretaceous.

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