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Hectioceras (Puteliceras) metomphalum Fossil Ammonite, Callovian Jurassic, Montrail-Bellay France – Authentic Specimen with COA

Hectioceras (Puteliceras) metomphalum Fossil Ammonite, Callovian Jurassic, Montrail-Bellay France – Authentic Specimen with COA

£17.28

Presenting a rare and genuine Hectioceras (Puteliceras) metomphalum fossil ammonite, originating from the Callovian Stage of the Middle Jurassic Period, collected in Montrail-Bellay, France. This fossil represents a classic Middle Jurassic ammonite with scientific importance and aesthetic appeal.

Taxonomic Classification:

  • Genus: Hectioceras (subgenus Puteliceras)
  • Species: metomphalum
  • Order: Ammonitida
  • Superfamily: Stephanoceratoidea
  • Family: Perisphinctidae
  • Initially described in the 19th century and refined by successive studies, Hectioceras is a well-known European ammonite genus valuable for Jurassic stratigraphy

Geological Context:

  • Stage: Callovian (Middle Jurassic)
  • Age: Approx. 166 to 163 million years ago
  • Location: Montrail-Bellay, France
  • Depositional Environment: Shallow, warm marine shelf with carbonate sedimentation, part of the Tethyan realm; ideal conditions for ammonite preservation
  • Biozone: Associated with mid-Callovian ammonite assemblages used in European and global biostratigraphy

Morphological Features:

  • Evolute shell with all whorls visible
  • Dense, bifurcating ribbing across the flanks, merging at strong ventrolateral tubercles
  • Broad, rounded venter sometimes exhibiting a shallow keel
  • Umbilicus moderately wide, characteristic of the genus
  • Suture lines visible in well-preserved specimens

Scientific & Collector Significance:

  • Hectioceras (Puteliceras) metomphalum is widely cited in studies of Middle Jurassic ammonite evolution and distribution
  • Fossils from Montrail-Bellay are sought after due to their excellent preservation and clarity of morphological features
  • Ideal for collectors, educators, and researchers focusing on Jurassic paleontology or cephalopod evolution

The specimen shown includes a 1cm scale cube for reference. You will receive the exact fossil pictured, professionally prepared and carefully chosen for quality.

Authenticity Guaranteed: This is a 100% genuine fossil ammonite, and your purchase comes with a Certificate of Authenticity. It makes a beautiful display piece or a valuable addition to a scientific collection.

Please review all photos for full sizing and condition. A superb opportunity to acquire a well-preserved Callovian Hectioceras (Puteliceras) from one of France’s most celebrated fossil sites.

(Actual as seen)

Only 1 left in stock

SKU: UF3872 Category:

Description

Presenting a rare and genuine Hectioceras (Puteliceras) metomphalum fossil ammonite, originating from the Callovian Stage of the Middle Jurassic Period, collected in Montrail-Bellay, France. This fossil represents a classic Middle Jurassic ammonite with scientific importance and aesthetic appeal.

Taxonomic Classification:

  • Genus: Hectioceras (subgenus Puteliceras)
  • Species: metomphalum
  • Order: Ammonitida
  • Superfamily: Stephanoceratoidea
  • Family: Perisphinctidae
  • Initially described in the 19th century and refined by successive studies, Hectioceras is a well-known European ammonite genus valuable for Jurassic stratigraphy

Geological Context:

  • Stage: Callovian (Middle Jurassic)
  • Age: Approx. 166 to 163 million years ago
  • Location: Montrail-Bellay, France
  • Depositional Environment: Shallow, warm marine shelf with carbonate sedimentation, part of the Tethyan realm; ideal conditions for ammonite preservation
  • Biozone: Associated with mid-Callovian ammonite assemblages used in European and global biostratigraphy

Morphological Features:

  • Evolute shell with all whorls visible
  • Dense, bifurcating ribbing across the flanks, merging at strong ventrolateral tubercles
  • Broad, rounded venter sometimes exhibiting a shallow keel
  • Umbilicus moderately wide, characteristic of the genus
  • Suture lines visible in well-preserved specimens

Scientific & Collector Significance:

  • Hectioceras (Puteliceras) metomphalum is widely cited in studies of Middle Jurassic ammonite evolution and distribution
  • Fossils from Montrail-Bellay are sought after due to their excellent preservation and clarity of morphological features
  • Ideal for collectors, educators, and researchers focusing on Jurassic paleontology or cephalopod evolution

The specimen shown includes a 1cm scale cube for reference. You will receive the exact fossil pictured, professionally prepared and carefully chosen for quality.

Authenticity Guaranteed: This is a 100% genuine fossil ammonite, and your purchase comes with a Certificate of Authenticity. It makes a beautiful display piece or a valuable addition to a scientific collection.

Please review all photos for full sizing and condition. A superb opportunity to acquire a well-preserved Callovian Hectioceras (Puteliceras) from one of France’s most celebrated fossil sites.

Additional information

Era

Jurassic
Origin

France

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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