Garantiana Fossil Ammonite – Upper Bajocian, Jurassic, Eurecy Calvados France – Genuine + COA
£ 18.00
A fine example of a Garantiana Fossil Ammonite, from the Upper Bajocian Stage of
the Jurassic Period, collected near Eurecy, Calvados, Normandy, France. This ammonite is a characteristic representative of the genus Garantiana, well-known for its ribbed shell and its importance as a biostratigraphic marker. The exact fossil shown in the photograph is the one you will receive, and it is supplied with a Certificate of Authenticity.Fossil Type & Species:
• Type: Ammonite (extinct marine cephalopod)
• Genus: Garantiana (exact species not specified)
• 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 key ammonite biozone widely recognised across NW Europe
• Depositional Environment: Shallow marine environment with alternating marl and limestone beds, ideal for preserving ammonitesLocality:
• Region: Eurecy, Calvados, Normandy, France
• Formation: Bajocian sedimentary sequences of the Paris Basin (specific stratigraphy not confirmed)Morphology & Features:
• Evolute shell with wide umbilicus
• Strong, dense ribbing typical of Garantiana
• Ribs bifurcate low on the flanks and extend across the rounded venter
• Consistent ornamentation gives it a distinctive appearance, useful in biostratigraphic correlationScientific Notes:
• Garantiana species have long been used as biostratigraphic index fossils, helping to define and correlate the Upper Bajocian across Europe
• First described in the 19th century and central to Jurassic ammonite taxonomyNotable Details:
• Natural, unrestored specimen with excellent preservation
• Displays diagnostic ribbing and morphology
• Scale Reference: Each square or cube in the photo = 1cm. Please check the image for accurate sizingAuthenticity & Guarantee: All of our fossils are 100% genuine, responsibly sourced, and come with a Certificate of Authenticity. The fossil you see is the exact specimen you will receive. This Garantiana ammonite is a scientifically important and attractive fossil, ideal for collectors, display, or educational purposes.
the Jurassic Period, collected near Eurecy, Calvados, Normandy, France. This ammonite is a characteristic representative of the genus Garantiana, well-known for its ribbed shell and its importance as a biostratigraphic marker. The exact fossil shown in the photograph is the one you will receive, and it is supplied with a Certificate of Authenticity.Fossil Type & Species:
• Type: Ammonite (extinct marine cephalopod)
• Genus: Garantiana (exact species not specified)
• 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 key ammonite biozone widely recognised across NW Europe
• Depositional Environment: Shallow marine environment with alternating marl and limestone beds, ideal for preserving ammonitesLocality:
• Region: Eurecy, Calvados, Normandy, France
• Formation: Bajocian sedimentary sequences of the Paris Basin (specific stratigraphy not confirmed)Morphology & Features:
• Evolute shell with wide umbilicus
• Strong, dense ribbing typical of Garantiana
• Ribs bifurcate low on the flanks and extend across the rounded venter
• Consistent ornamentation gives it a distinctive appearance, useful in biostratigraphic correlationScientific Notes:
• Garantiana species have long been used as biostratigraphic index fossils, helping to define and correlate the Upper Bajocian across Europe
• First described in the 19th century and central to Jurassic ammonite taxonomyNotable Details:
• Natural, unrestored specimen with excellent preservation
• Displays diagnostic ribbing and morphology
• Scale Reference: Each square or cube in the photo = 1cm. Please check the image for accurate sizingAuthenticity & Guarantee: All of our fossils are 100% genuine, responsibly sourced, and come with a Certificate of Authenticity. The fossil you see is the exact specimen you will receive. This Garantiana ammonite is a scientifically important and attractive fossil, ideal for collectors, display, or educational purposes.
Other Products
