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 3″ Orthaspidoceras lallierianum Fossil Ammonite – Middle Kimmeridgian, Upper Jurassic, La Rochelle France – Genuine + COA
£60.00
A rare 3-inch Orthaspidoceras lallierianum Fossil Ammonite, from the Middle Kimmeridgian Stage of the Upper Jurassic, collected at La Rochelle, France. This ammonite is a striking representative of the genus Orthaspidoceras, characterised by its robust whorls and strong ribbing. The specimen shown in the photographs is the exact one you will receive, and it is supplied with a Certificate of Authenticity.
Fossil Type & Species:
Type: Ammonite (extinct marine cephalopod)
Species:Orthaspidoceras lallierianum
Order: Ammonitida
Superfamily: Perisphinctoidea
Family: Aspidoceratidae
Geological Context:
Period: Jurassic
Epoch/Stage: Upper Jurassic – Middle Kimmeridgian (approx. 155 to 154 million years ago)
Biozone: Typically associated with the Acanthicum Zone, important in Kimmeridgian stratigraphy across Europe
Formation: Kimmeridgian limestones and marls of western France
Depositional Environment: Marine shelf with carbonate sedimentation, providing excellent conditions for ammonite fossilisation
Locality:
Region: La Rochelle, France
Morphology & Features:
Strong, thick shell with pronounced whorls
Coarse ribbing across the flanks, ribs extending over the venter
Evolute shell structure with moderately wide umbilicus
Diagnostic features of Orthaspidoceras make it a collectable specimen
Scientific Notes:
Orthaspidoceras lallierianum was first described in the 19th century during detailed studies of French Jurassic ammonites
The genus Orthaspidoceras is a significant taxon within the family Aspidoceratidae, providing key information on Kimmeridgian biostratigraphy
Notable Details:
Excellent preservation of ribbing and shell detail
Rare French ammonite from a classic Jurassic fossil locality
100% genuine, natural fossil with no restoration
Scale Reference: Each square or cube in the image = 1cm. Please see photos for exact sizing
Authenticity & Guarantee: All of our fossils are 100% genuine, responsibly sourced, and professionally curated. Each specimen includes a Certificate of Authenticity. The fossil pictured is the exact one you will receive.
This Orthaspidoceras lallierianum ammonite is a rare and scientifically valuable fossil from the Middle Kimmeridgian of La Rochelle – a superb addition for collectors, researchers, or natural history displays.
A rare 3-inch Orthaspidoceras lallierianum Fossil Ammonite, from the Middle Kimmeridgian Stage of the Upper Jurassic, collected at La Rochelle, France. This ammonite is a striking representative of the genus Orthaspidoceras, characterised by its robust whorls and strong ribbing. The specimen shown in the photographs is the exact one you will receive, and it is supplied with a Certificate of Authenticity.
Fossil Type & Species:
Type: Ammonite (extinct marine cephalopod)
Species:Orthaspidoceras lallierianum
Order: Ammonitida
Superfamily: Perisphinctoidea
Family: Aspidoceratidae
Geological Context:
Period: Jurassic
Epoch/Stage: Upper Jurassic – Middle Kimmeridgian (approx. 155 to 154 million years ago)
Biozone: Typically associated with the Acanthicum Zone, important in Kimmeridgian stratigraphy across Europe
Formation: Kimmeridgian limestones and marls of western France
Depositional Environment: Marine shelf with carbonate sedimentation, providing excellent conditions for ammonite fossilisation
Locality:
Region: La Rochelle, France
Morphology & Features:
Strong, thick shell with pronounced whorls
Coarse ribbing across the flanks, ribs extending over the venter
Evolute shell structure with moderately wide umbilicus
Diagnostic features of Orthaspidoceras make it a collectable specimen
Scientific Notes:
Orthaspidoceras lallierianum was first described in the 19th century during detailed studies of French Jurassic ammonites
The genus Orthaspidoceras is a significant taxon within the family Aspidoceratidae, providing key information on Kimmeridgian biostratigraphy
Notable Details:
Excellent preservation of ribbing and shell detail
Rare French ammonite from a classic Jurassic fossil locality
100% genuine, natural fossil with no restoration
Scale Reference: Each square or cube in the image = 1cm. Please see photos for exact sizing
Authenticity & Guarantee: All of our fossils are 100% genuine, responsibly sourced, and professionally curated. Each specimen includes a Certificate of Authenticity. The fossil pictured is the exact one you will receive.
This Orthaspidoceras lallierianum ammonite is a rare and scientifically valuable fossil from the Middle Kimmeridgian of La Rochelle – a superb addition for collectors, researchers, or natural history displays.
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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