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 Quenstedtoceras pseudolamberti Fossil Ammonite – Jurassic Upper Callovian, Ryazan Russia – Genuine + COA
£24.00
Discover a rare and scientifically significant ammonite from the Jurassic seas: this exceptional Quenstedtoceras pseudolamberti Fossil Ammonite originates from the Upper Callovian Stage of the Jurassic Period, collected in Ryazan, Russia. Carefully selected for its preservation and rarity, this authentic specimen offers a glimpse into the complex ammonoid evolution of the Middle-Late Jurassic transition.
Fossil Type & Species:
Type: Ammonite (extinct marine cephalopod)
Species:Quenstedtoceras pseudolamberti
Order: Ammonitida
Superfamily: Stephanoceratoidea
Family: Cardioceratidae
Geological Context:
Period: Jurassic
Epoch/Stage: Middle to Late Jurassic boundary, specifically Upper Callovian
Biozone: Likely within the Quenstedtoceras lamberti Zone, closely associated with this species
Depositional Environment: Offshore marine shelf, within fine calcareous sediments – ideal for cephalopod fossilisation
Locality:
Region: Ryazan Oblast, western Russia
Formation: Likely Callovian marine clays and marls typical of the Russian Platform (specific lithostratigraphy unverified)
Morphology & Features:
Strongly ribbed evolute shell with well-defined bifurcating ribs
Wide umbilicus and compressed whorl section
Distinctive suture lines and ornamentation characteristic of Quenstedtoceras pseudolamberti
Rare transitional form bridging earlier Macrocephalitidae-like lineages and later Cardioceratidae
Scientific Notes:
First described by Russian paleontologist Gerassimov in the mid-20th century, Q. pseudolamberti is used in biostratigraphy to define specific subzones of the Upper Callovian
Notable for its role in correlating European and Russian Jurassic stratigraphic sequences
Notable Details:
Fossil is in excellent condition and displays key taxonomic features
This is a carefully selected, professionally prepared piece – ideal for collectors, educational display, or research
Scale Cube/Squares: Each square or cube in the photo = 1cm. Please refer to the image for exact dimensions of the specimen
Authenticity: All our fossils are 100% genuine specimens and come with a Certificate of Authenticity. You will receive the exact fossil shown in the photograph.
Add this rare and scientifically valuable fossil to your collection today – a perfect blend of palaeontology, geology, and natural history.
Discover a rare and scientifically significant ammonite from the Jurassic seas: this exceptional Quenstedtoceras pseudolamberti Fossil Ammonite originates from the Upper Callovian Stage of the Jurassic Period, collected in Ryazan, Russia. Carefully selected for its preservation and rarity, this authentic specimen offers a glimpse into the complex ammonoid evolution of the Middle-Late Jurassic transition.
Fossil Type & Species:
Type: Ammonite (extinct marine cephalopod)
Species:Quenstedtoceras pseudolamberti
Order: Ammonitida
Superfamily: Stephanoceratoidea
Family: Cardioceratidae
Geological Context:
Period: Jurassic
Epoch/Stage: Middle to Late Jurassic boundary, specifically Upper Callovian
Biozone: Likely within the Quenstedtoceras lamberti Zone, closely associated with this species
Depositional Environment: Offshore marine shelf, within fine calcareous sediments – ideal for cephalopod fossilisation
Locality:
Region: Ryazan Oblast, western Russia
Formation: Likely Callovian marine clays and marls typical of the Russian Platform (specific lithostratigraphy unverified)
Morphology & Features:
Strongly ribbed evolute shell with well-defined bifurcating ribs
Wide umbilicus and compressed whorl section
Distinctive suture lines and ornamentation characteristic of Quenstedtoceras pseudolamberti
Rare transitional form bridging earlier Macrocephalitidae-like lineages and later Cardioceratidae
Scientific Notes:
First described by Russian paleontologist Gerassimov in the mid-20th century, Q. pseudolamberti is used in biostratigraphy to define specific subzones of the Upper Callovian
Notable for its role in correlating European and Russian Jurassic stratigraphic sequences
Notable Details:
Fossil is in excellent condition and displays key taxonomic features
This is a carefully selected, professionally prepared piece – ideal for collectors, educational display, or research
Scale Cube/Squares: Each square or cube in the photo = 1cm. Please refer to the image for exact dimensions of the specimen
Authenticity: All our fossils are 100% genuine specimens and come with a Certificate of Authenticity. You will receive the exact fossil shown in the photograph.
Add this rare and scientifically valuable fossil to your collection today – a perfect blend of palaeontology, geology, and natural history.
Additional information
Era
Jurassic
Origin
Russia
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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