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 Asteroceras Ammonite Fossil – Lower Jurassic, Frodingham Ironstone Formation, Scunthorpe UK
£60.00
This listing features a rare ammonite fossil from the genus Asteroceras, collected from the Frodingham Ironstone Formation at Conesby Quarry, Scunthorpe, North Lincolnshire, England. This specimen dates to the Lower Jurassic, specifically the Denotatus Subzone of the Obtusum Zone, within the Lower Lias Group.
Fossil Type & Species:
Type: Ammonite (Extinct Cephalopod Mollusc)
Genus:Asteroceras
Known for its elegant, often coarsely ribbed shell and rapid evolutionary radiation during the Early Jurassic
Depositional Environment: Shallow marine setting with iron-rich sedimentation, ideal for fossil preservation. Fossils are typically found in sideritic nodules or fine-grained mudstones.
Morphological Features:
Strongly ribbed, planispirally coiled shell with open umbilicus
Ribs may be straight or gently curved, bifurcating along the flanks
Suture lines often finely preserved in well-mineralised examples
Shells range from compact to slightly compressed, typical of the genus
Scientific Importance:
Asteroceras is a widespread and stratigraphically important genus in the Early Jurassic, used in biozonation and evolutionary studies
Its presence in the Denotatus Subzone makes it valuable for regional correlation and documentation of ammonite diversity in the UK
Specimens from Conesby Quarry are highly sought-after due to their exceptional preservation in ironstone
Locality Information:
Conesby Quarry, Scunthorpe, North Lincolnshire, UK – an important fossil locality known for yielding beautifully preserved ammonites from the Lower Jurassic Frodingham Ironstone Formation
Authenticity & Display:
All of our fossils are 100% Genuine Specimens and come with a Certificate of Authenticity. The photographs show the exact fossil you will receive. Full sizing is visible in the photo – note the scale cube = 1cm.
This rare and display-quality specimen of Asteroceras is ideal for serious collectors, fossil enthusiasts, and those studying Early Jurassic marine life.
Own an iconic cephalopod fossil from over 190 million years ago—an ancient treasure from the iron-rich seas of Jurassic Britain!
This listing features a rare ammonite fossil from the genus Asteroceras, collected from the Frodingham Ironstone Formation at Conesby Quarry, Scunthorpe, North Lincolnshire, England. This specimen dates to the Lower Jurassic, specifically the Denotatus Subzone of the Obtusum Zone, within the Lower Lias Group.
Fossil Type & Species:
Type: Ammonite (Extinct Cephalopod Mollusc)
Genus:Asteroceras
Known for its elegant, often coarsely ribbed shell and rapid evolutionary radiation during the Early Jurassic
Depositional Environment: Shallow marine setting with iron-rich sedimentation, ideal for fossil preservation. Fossils are typically found in sideritic nodules or fine-grained mudstones.
Morphological Features:
Strongly ribbed, planispirally coiled shell with open umbilicus
Ribs may be straight or gently curved, bifurcating along the flanks
Suture lines often finely preserved in well-mineralised examples
Shells range from compact to slightly compressed, typical of the genus
Scientific Importance:
Asteroceras is a widespread and stratigraphically important genus in the Early Jurassic, used in biozonation and evolutionary studies
Its presence in the Denotatus Subzone makes it valuable for regional correlation and documentation of ammonite diversity in the UK
Specimens from Conesby Quarry are highly sought-after due to their exceptional preservation in ironstone
Locality Information:
Conesby Quarry, Scunthorpe, North Lincolnshire, UK – an important fossil locality known for yielding beautifully preserved ammonites from the Lower Jurassic Frodingham Ironstone Formation
Authenticity & Display:
All of our fossils are 100% Genuine Specimens and come with a Certificate of Authenticity. The photographs show the exact fossil you will receive. Full sizing is visible in the photo – note the scale cube = 1cm.
This rare and display-quality specimen of Asteroceras is ideal for serious collectors, fossil enthusiasts, and those studying Early Jurassic marine life.
Own an iconic cephalopod fossil from over 190 million years ago—an ancient treasure from the iron-rich seas of Jurassic Britain!
Additional information
Era
Jurassic
Origin
United Kingdom
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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