Fossils for Sale - High-quality BRITISH and WORLDWIDE Fossils. An impressive selection of fossils, including Ammonites, Trilobites, Belemnites, Fossil Fish, Fossil Shark Teeth, Fossilised Insects in Amber, Dinosaurs, and Reptiles. UK Fossils was formed in 1988 and collects and preps our own fossils in the heart of the Jurassic Coast, collecting fossils from Lyme Regis, Charmouth and Somerset. Our passion for fossils is reflected in our carefully curated collection, which includes some of the rarest and most unique specimens available.
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: Stephanoceratidae
Geological 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 fossilisation
Locality:
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 species
Scientific 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 works
Notable 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 size
Authenticity & 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.
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: Stephanoceratidae
Geological 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 fossilisation
Locality:
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 species
Scientific 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 works
Notable 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 size
Authenticity & 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.
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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