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 Hildaites surtepentum Fossil Ammonite | Upper Toarcian Jurassic | Ilminster UK | Authentic Specimen
£36.00
A beautifully preserved and rare specimen of the ammonite Hildaites surtepentum, from the Upper Toarcian Stage of the Jurassic Period, discovered in the well-known fossil-bearing layers near Ilminster, Somerset, United Kingdom. This is a genuine collector-grade fossil showcasing distinctive features of the genus Hildaites, a valuable addition for any serious collector, researcher, or educational display.
You will receive the exact fossil shown in the photographs. A 1cm scale cube is included in the images for full size reference. Please review the photos for detailed views and dimensions.
Geological & Palaeontological Information:
Fossil Type: Ammonite
Species:Hildaites surtepentum (formally described, attribution likely to Buckman or contemporaries depending on revision)
Geological Period: Jurassic
Stage: Upper Toarcian (~182 to 174 million years ago)
Location: Ilminster, Somerset, England, UK
Depositional Environment: Marine shelf in a shallow epicontinental sea, rich in fine-grained silts and clays
Order: Ammonitida
Superfamily: Hildoceratoidea
Family: Hildoceratidae
Zone (Inferred): Possibly within the Levesquei or Bifrons Zones, which host many Hildaites species in Ilminster strata
Morphological Features:
Evolute coiling with moderately wide umbilicus
Strong, sinuous ribbing that bifurcates mid-flank
Smooth ventrolateral shoulder leading to a rounded venter
Known for distinctive shell ornamentation and precise rib spacing
Notable Points:
Hildaites species are stratigraphically important and widely used in Jurassic ammonite biostratigraphy
Fossils from Ilminster are often highly sought after due to the fine detail preserved in the Lower Lias clays and silts
Rarely offered species, especially with excellent preservation like this example
Why This Fossil is a Collector’s Piece:
Rare Upper Toarcian ammonite from a renowned UK site
Detailed ribbing and classic Hildaites features
Excellent for study, display, or stratigraphic reference
A beautifully preserved and rare specimen of the ammonite Hildaites surtepentum, from the Upper Toarcian Stage of the Jurassic Period, discovered in the well-known fossil-bearing layers near Ilminster, Somerset, United Kingdom. This is a genuine collector-grade fossil showcasing distinctive features of the genus Hildaites, a valuable addition for any serious collector, researcher, or educational display.
You will receive the exact fossil shown in the photographs. A 1cm scale cube is included in the images for full size reference. Please review the photos for detailed views and dimensions.
Geological & Palaeontological Information:
Fossil Type: Ammonite
Species:Hildaites surtepentum (formally described, attribution likely to Buckman or contemporaries depending on revision)
Geological Period: Jurassic
Stage: Upper Toarcian (~182 to 174 million years ago)
Location: Ilminster, Somerset, England, UK
Depositional Environment: Marine shelf in a shallow epicontinental sea, rich in fine-grained silts and clays
Order: Ammonitida
Superfamily: Hildoceratoidea
Family: Hildoceratidae
Zone (Inferred): Possibly within the Levesquei or Bifrons Zones, which host many Hildaites species in Ilminster strata
Morphological Features:
Evolute coiling with moderately wide umbilicus
Strong, sinuous ribbing that bifurcates mid-flank
Smooth ventrolateral shoulder leading to a rounded venter
Known for distinctive shell ornamentation and precise rib spacing
Notable Points:
Hildaites species are stratigraphically important and widely used in Jurassic ammonite biostratigraphy
Fossils from Ilminster are often highly sought after due to the fine detail preserved in the Lower Lias clays and silts
Rarely offered species, especially with excellent preservation like this example
Why This Fossil is a Collector’s Piece:
Rare Upper Toarcian ammonite from a renowned UK site
Detailed ribbing and classic Hildaites features
Excellent for study, display, or stratigraphic reference
Supplied with a Certificate of Authenticity
100% genuine and ethically sourced
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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