Rare 2.75" Orionoides pseudorion Fossil Ammonite | Callovian Jurassic | Montreuil Bellay France | Genuine Specimen with COA
£ 60.00
This listing is for a Rare 2.75" Fossil Ammonite (Orionoides pseudorion) from
the Callovian Stage of the Middle Jurassic, discovered at Montreuil Bellay (Maine-et-Loire, France).100% Genuine Fossil Specimen – All of our fossils are authentic and come with a Certificate of Authenticity.Exact Specimen Shown – The photos provided are of the actual fossil you will receive.Scale for Reference – Scale rule squares/cube = 1cm. Please see photos for full sizing.GEOLOGICAL & SCIENTIFIC DETAILS:
• Fossil Type: Ammonite (extinct marine mollusc, related to squid and octopus).
• Species: Orionoides pseudorion.
• Order: Ammonitida.
• Superfamily: Stephanoceratoidea.
• Family: Stephanoceratidae.
• Geological Period: Jurassic.
• Stage/Age: Callovian (approx. 166 – 163 million years ago).
• Locality: Montreuil Bellay, France.NOTABLE FEATURES & MORPHOLOGY:
• Shell Form: Involute with compressed whorls.
• Ribs: Strong ribbing across the flanks, often bifurcating toward the venter.
• Whorl Section: Narrow to rounded, with detailed ornamentation typical of Orionoides.
• Size: At 2.75", this is a fine and rare example of the species.DEPOSITIONAL ENVIRONMENT:During the Callovian, the Montreuil Bellay region was part of a shallow marine environment with alternating marl and limestone beds. These deposits provided excellent conditions for ammonite preservation.SCIENTIFIC & COLLECTING IMPORTANCE:Orionoides pseudorion is a significant ammonite species for biostratigraphic correlation within the Callovian. Its diagnostic ribbing and shell morphology make it an important index fossil and a highly desirable specimen for collectors. Why Buy This Fossil?
• A rare ammonite species from the Callovian of France.
• Excellent preservation with clear ribbing and detail.
• A valuable addition for collectors of Jurassic ammonites or European fossil material.
• Supplied with a Certificate of Authenticity guaranteeing its provenance. All of our fossils are responsibly sourced, carefully prepared, and chosen for quality.
the Callovian Stage of the Middle Jurassic, discovered at Montreuil Bellay (Maine-et-Loire, France).100% Genuine Fossil Specimen – All of our fossils are authentic and come with a Certificate of Authenticity.Exact Specimen Shown – The photos provided are of the actual fossil you will receive.Scale for Reference – Scale rule squares/cube = 1cm. Please see photos for full sizing.GEOLOGICAL & SCIENTIFIC DETAILS:
• Fossil Type: Ammonite (extinct marine mollusc, related to squid and octopus).
• Species: Orionoides pseudorion.
• Order: Ammonitida.
• Superfamily: Stephanoceratoidea.
• Family: Stephanoceratidae.
• Geological Period: Jurassic.
• Stage/Age: Callovian (approx. 166 – 163 million years ago).
• Locality: Montreuil Bellay, France.NOTABLE FEATURES & MORPHOLOGY:
• Shell Form: Involute with compressed whorls.
• Ribs: Strong ribbing across the flanks, often bifurcating toward the venter.
• Whorl Section: Narrow to rounded, with detailed ornamentation typical of Orionoides.
• Size: At 2.75", this is a fine and rare example of the species.DEPOSITIONAL ENVIRONMENT:During the Callovian, the Montreuil Bellay region was part of a shallow marine environment with alternating marl and limestone beds. These deposits provided excellent conditions for ammonite preservation.SCIENTIFIC & COLLECTING IMPORTANCE:Orionoides pseudorion is a significant ammonite species for biostratigraphic correlation within the Callovian. Its diagnostic ribbing and shell morphology make it an important index fossil and a highly desirable specimen for collectors. Why Buy This Fossil?
• A rare ammonite species from the Callovian of France.
• Excellent preservation with clear ribbing and detail.
• A valuable addition for collectors of Jurassic ammonites or European fossil material.
• Supplied with a Certificate of Authenticity guaranteeing its provenance. All of our fossils are responsibly sourced, carefully prepared, and chosen for quality.
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