RARE Garantiana densicostata Fossil Ammonite – Upper Bajocian, Jurassic, Eurecy Calvados France – Genuine + COA
£ 24.00
A rare and well-preserved Garantiana densicostata Fossil Ammonite, from the
Upper Bajocian Stage of the Jurassic Period, discovered near Eurecy, Calvados, Normandy, France. This stunning ammonite showcases the densely ribbed morphology typical of its species and comes with a Certificate of Authenticity. The photo displays the exact specimen you will receive.Fossil Type & Species:
• Type: Ammonite (extinct marine cephalopod)
• Species: Garantiana densicostata
• Order: Ammonitida
• Superfamily: Stephanoceratoidea
• Family: StephanoceratidaeGeological Context:
• Period: Jurassic
• Epoch/Stage: Middle Jurassic – Upper Bajocian (approx. 170.3 to 168.3 million years ago)
• Biozone: Garantiana Zone – a prominent ammonite biozone used across NW Europe
• Depositional Environment: Shallow marine environment with calcareous marls and limestones, ideal for ammonite fossilisationLocality:
• Region: Eurecy, Calvados, Normandy, France
• Formation: Bajocian marl-limestone sequences within the Paris Basin (exact stratigraphy not specified)Morphology & Features:
• Strongly evolute shell with a wide umbilicus
• Dense, fine ribbing that bifurcates low on the flanks
• Ribs extend uninterrupted across the rounded venter
• Flattened flanks and consistent ornamentation define the speciesScientific Notes:
• Garantiana densicostata is a classic index species within the Upper Bajocian and widely used in biostratigraphic studies across Europe
• Originally described in the 19th century and later refined in French stratigraphic worksNotable Details:
• Excellent definition of ribs and suture lines
• Completely natural with no restoration
• Scale Reference: Each square or cube = 1cm. Refer to the image for full fossil sizeAuthenticity & Guarantee: All of our fossils are 100% genuine, responsibly sourced, and include a Certificate of Authenticity. You will receive the actual fossil shown in the photo. This Garantiana densicostata ammonite is a beautiful and scientifically significant specimen – perfect for fossil collectors, educators, or as a centrepiece in any natural history collection.
Upper Bajocian Stage of the Jurassic Period, discovered near Eurecy, Calvados, Normandy, France. This stunning ammonite showcases the densely ribbed morphology typical of its species and comes with a Certificate of Authenticity. The photo displays the exact specimen you will receive.Fossil Type & Species:
• Type: Ammonite (extinct marine cephalopod)
• Species: Garantiana densicostata
• Order: Ammonitida
• Superfamily: Stephanoceratoidea
• Family: StephanoceratidaeGeological Context:
• Period: Jurassic
• Epoch/Stage: Middle Jurassic – Upper Bajocian (approx. 170.3 to 168.3 million years ago)
• Biozone: Garantiana Zone – a prominent ammonite biozone used across NW Europe
• Depositional Environment: Shallow marine environment with calcareous marls and limestones, ideal for ammonite fossilisationLocality:
• Region: Eurecy, Calvados, Normandy, France
• Formation: Bajocian marl-limestone sequences within the Paris Basin (exact stratigraphy not specified)Morphology & Features:
• Strongly evolute shell with a wide umbilicus
• Dense, fine ribbing that bifurcates low on the flanks
• Ribs extend uninterrupted across the rounded venter
• Flattened flanks and consistent ornamentation define the speciesScientific Notes:
• Garantiana densicostata is a classic index species within the Upper Bajocian and widely used in biostratigraphic studies across Europe
• Originally described in the 19th century and later refined in French stratigraphic worksNotable Details:
• Excellent definition of ribs and suture lines
• Completely natural with no restoration
• Scale Reference: Each square or cube = 1cm. Refer to the image for full fossil sizeAuthenticity & Guarantee: All of our fossils are 100% genuine, responsibly sourced, and include a Certificate of Authenticity. You will receive the actual fossil shown in the photo. This Garantiana densicostata ammonite is a beautiful and scientifically significant specimen – perfect for fossil collectors, educators, or as a centrepiece in any natural history collection.
