Rare 4" Pachycardioceras robustum Fossil Ammonite – Oxfordian, Upper Jurassic, Redcliff Dorset UK – Genuine + COA
£ 120.00
A rare 4-inch Pachycardioceras robustum Fossil Ammonite, from the Oxfordian
Stage of the Upper Jurassic, collected at Redcliff, Dorset, United Kingdom. This ammonite is a fine example of the genus Pachycardioceras, a robust and distinctive ammonite highly valued by collectors and researchers. The specimen shown in the photographs is the exact one you will receive, and it comes with a Certificate of Authenticity.Fossil Type & Species:
• Type: Ammonite (extinct marine cephalopod)
• Species: Pachycardioceras robustum
• Order: Ammonitida
• Superfamily: Cardiocerataceae
• Family: CardioceratidaeGeological Context:
• Period: Jurassic
• Epoch/Stage: Upper Jurassic – Oxfordian (approx. 163.5 to 157.3 million years ago)
• Biozone: Associated with the Cordatum Zone of the Oxfordian, important in defining ammonite stratigraphy in Europe
• Formation: Oxford Clay / Oxfordian marl-limestone successions of Dorset
• Depositional Environment: Shallow marine shelf with silty clays and carbonates, producing exceptional ammonite preservationLocality:
• Region: Redcliff, Dorset, United KingdomMorphology & Features:
• Large, robust ammonite shell with broad whorls
• Coarse ribbing, many ribs bifurcating across the flanks and ventral area
• Strongly ornamented with well-defined growth lines
• Diagnostic features that distinguish Pachycardioceras robustum from related speciesScientific Notes:
• Pachycardioceras robustum is an index species of the Oxfordian Stage, first described in the 19th century
• A key taxon for Upper Jurassic ammonite biostratigraphy across EuropeNotable Details:
• Rare British ammonite with excellent preservation and display size (4 inches)
• 100% genuine, natural fossil – no restoration
• Scale Reference: Each square or cube in the image = 1cm. Please see photos for accurate sizingAuthenticity & Guarantee: All of our fossils are 100% genuine, responsibly sourced, and professionally curated. Each specimen is supplied with a Certificate of Authenticity. The fossil shown is the exact one you will receive. This Pachycardioceras robustum ammonite is a rare and scientifically valuable fossil from the Oxfordian of Dorset – an excellent addition for collectors, researchers, or natural history displays.
Stage of the Upper Jurassic, collected at Redcliff, Dorset, United Kingdom. This ammonite is a fine example of the genus Pachycardioceras, a robust and distinctive ammonite highly valued by collectors and researchers. The specimen shown in the photographs is the exact one you will receive, and it comes with a Certificate of Authenticity.Fossil Type & Species:
• Type: Ammonite (extinct marine cephalopod)
• Species: Pachycardioceras robustum
• Order: Ammonitida
• Superfamily: Cardiocerataceae
• Family: CardioceratidaeGeological Context:
• Period: Jurassic
• Epoch/Stage: Upper Jurassic – Oxfordian (approx. 163.5 to 157.3 million years ago)
• Biozone: Associated with the Cordatum Zone of the Oxfordian, important in defining ammonite stratigraphy in Europe
• Formation: Oxford Clay / Oxfordian marl-limestone successions of Dorset
• Depositional Environment: Shallow marine shelf with silty clays and carbonates, producing exceptional ammonite preservationLocality:
• Region: Redcliff, Dorset, United KingdomMorphology & Features:
• Large, robust ammonite shell with broad whorls
• Coarse ribbing, many ribs bifurcating across the flanks and ventral area
• Strongly ornamented with well-defined growth lines
• Diagnostic features that distinguish Pachycardioceras robustum from related speciesScientific Notes:
• Pachycardioceras robustum is an index species of the Oxfordian Stage, first described in the 19th century
• A key taxon for Upper Jurassic ammonite biostratigraphy across EuropeNotable Details:
• Rare British ammonite with excellent preservation and display size (4 inches)
• 100% genuine, natural fossil – no restoration
• Scale Reference: Each square or cube in the image = 1cm. Please see photos for accurate sizingAuthenticity & Guarantee: All of our fossils are 100% genuine, responsibly sourced, and professionally curated. Each specimen is supplied with a Certificate of Authenticity. The fossil shown is the exact one you will receive. This Pachycardioceras robustum ammonite is a rare and scientifically valuable fossil from the Oxfordian of Dorset – an excellent addition for collectors, researchers, or natural history displays.
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