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 10″ Proplanulites Fossil Ammonite | Lower Callovian Jurassic | Manor Farm Wiltshire UK | Certified Genuine Specimen
£600.00
An impressive and rare 10-inch fossil ammonite: Proplanulites sp., from the Lower Callovian Stage of the Middle Jurassic, collected from the renowned fossil-rich beds of Manor Farm, Wiltshire, United Kingdom. This exceptional example represents an important evolutionary stage in mid-Jurassic ammonite development, making it a desirable piece for collectors and educational display.
The specimen shown is the exact fossil you will receive, photographed with a 1cm scale cube for size reference. Please refer to the images for detailed condition and dimensions.
Geological & Palaeontological Information:
Fossil Type: Ammonite
Genus:Proplanulites
Geological Period: Jurassic
Stage: Lower Callovian (~165 to 163 million years ago)
Location: Manor Farm, Wiltshire, England, UK
Depositional Environment: Shallow marine shelf; fine calcareous mudstones and silts from the Oxford Clay Formation
Order: Ammonitida
Superfamily: Stephanoceratoidea
Family: Kosmoceratidae
Biozone (Inferred): Likely within the Macrocephalites herveyi or Bullatimorphites bullatus Zones of the Lower Callovian, based on stratigraphy at Manor Farm
Morphological Features:
Moderately involute shell with smooth or weakly ribbed flanks
Broad, rounded whorls with a flattened venter in later growth stages
Sutures typically complex, though less ornamented than later Kosmoceratid forms
Potential faint keel or ventrolateral tubercles in some specimens
Notable Points:
Proplanulites is considered transitional in form, marking key ammonite evolution in the Callovian
Manor Farm is a scientifically significant site for Jurassic marine invertebrates
Large, display-sized examples of Proplanulites are seldom available on the fossil market
Why This Fossil is Special:
Rare ammonite genus from a globally important stratigraphic interval
Excellent size and preservation from a UK heritage site
Supplied with a Certificate of Authenticity
100% genuine and ethically sourced fossil
Ideal for collectors, academic institutions, or interior display
(Actual as seen)
Includes a fully hand-signed Premium Certificate of Authenticity.
An impressive and rare 10-inch fossil ammonite: Proplanulites sp., from the Lower Callovian Stage of the Middle Jurassic, collected from the renowned fossil-rich beds of Manor Farm, Wiltshire, United Kingdom. This exceptional example represents an important evolutionary stage in mid-Jurassic ammonite development, making it a desirable piece for collectors and educational display.
The specimen shown is the exact fossil you will receive, photographed with a 1cm scale cube for size reference. Please refer to the images for detailed condition and dimensions.
Geological & Palaeontological Information:
Fossil Type: Ammonite
Genus:Proplanulites
Geological Period: Jurassic
Stage: Lower Callovian (~165 to 163 million years ago)
Location: Manor Farm, Wiltshire, England, UK
Depositional Environment: Shallow marine shelf; fine calcareous mudstones and silts from the Oxford Clay Formation
Order: Ammonitida
Superfamily: Stephanoceratoidea
Family: Kosmoceratidae
Biozone (Inferred): Likely within the Macrocephalites herveyi or Bullatimorphites bullatus Zones of the Lower Callovian, based on stratigraphy at Manor Farm
Morphological Features:
Moderately involute shell with smooth or weakly ribbed flanks
Broad, rounded whorls with a flattened venter in later growth stages
Sutures typically complex, though less ornamented than later Kosmoceratid forms
Potential faint keel or ventrolateral tubercles in some specimens
Notable Points:
Proplanulites is considered transitional in form, marking key ammonite evolution in the Callovian
Manor Farm is a scientifically significant site for Jurassic marine invertebrates
Large, display-sized examples of Proplanulites are seldom available on the fossil market
Why This Fossil is Special:
Rare ammonite genus from a globally important stratigraphic interval
Excellent size and preservation from a UK heritage site
Supplied with a Certificate of Authenticity
100% genuine and ethically sourced fossil
Ideal for collectors, academic institutions, or interior display
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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