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.

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Fossil Ammonite Grammoceras thouarsense Split Nodule Upper Toarcian Jurassic Saltwick Bay UK Genuine
Fossil Ammonite Grammoceras thouarsense Split Nodule Upper Toarcian Jurassic Saltwick Bay UK Genuine - Image 2
Fossil Ammonite Grammoceras thouarsense Split Nodule Upper Toarcian Jurassic Saltwick Bay UK Genuine - Image 3
Fossil Ammonite Grammoceras thouarsense Split Nodule Upper Toarcian Jurassic Saltwick Bay UK Genuine - Image 4

Fossil Ammonite Grammoceras thouarsense Split Nodule Upper Toarcian Jurassic Saltwick Bay UK Genuine

Original price was: £60.00.Current price is: £54.00.

A fine and scientifically significant split nodule fossil ammonite of Grammoceras thouarsense, originating from the Upper Toarcian stage of the Early Jurassic, collected from Saltwick Bay, North Yorkshire, United Kingdom. This beautifully preserved ammonite is neatly displayed within its original limestone nodule, which has been split to reveal the intricate internal and external detail of the fossil.

  • Fossil Type: Ammonite (extinct marine cephalopod)
  • Species: Grammoceras thouarsense
  • Format: Split nodule – both halves included
  • Size: See image with 1cm scale cube for reference
  • Geological Period: Jurassic
  • Stage: Upper Toarcian (~182–174 million years ago)
  • Locality: Saltwick Bay, North Yorkshire, England, UK
  • Family: Hildoceratidae
  • Superfamily: Hildoceratoidea
  • Order: Ammonitida
  • Depositional Environment: Low-energy marine shelf with fine-grained mudstones and calcareous concretions; classic Toarcian marine preservation

Geological & Scientific Significance:

Grammoceras thouarsense is a widely recognised ammonite species of the Upper Toarcian, known for its very flat, discoidal shell, fine ribbing, and open umbilicus. It is a key zonal fossil in European biostratigraphy, often associated with the Thouarsense Zone, which helps geologists correlate strata across vast regions of the Jurassic world.

This ammonite thrived in offshore environments during the early phase of a global recovery following the early Toarcian Oceanic Anoxic Event (T-OAE), a significant episode in Earth’s climatic and oceanographic history.

Saltwick Bay is a famous Yorkshire coast fossil locality within the Whitby Mudstone Formation, rich in ammonites, marine reptiles, belemnites, and fossilised wood. Its nodular concretions often preserve ammonites in exquisite detail due to rapid burial and early mineralisation.

Notable Features:

  • Neatly split nodule showing internal and external views of the ammonite
  • Extremely flat, planispiral form with fine ribbing and sharp detail
  • From a world-renowned Jurassic fossil locality
  • Highly collectable and ideal for display or study

Authenticity Guaranteed: All of our fossils are 100% genuine. This specimen comes with a Certificate of Authenticity, verifying its identity and origin.

Photo Disclosure: The fossil pictured is the exact one you will receive. The scale rule shows 1cm squares for accurate sizing.

This Grammoceras thouarsense ammonite from Saltwick Bay is a stunning display piece and an invaluable reference specimen—perfect for collectors, educators, and Jurassic enthusiasts alike.

(Actual as seen)

Only 1 left in stock

SKU: UF4577 Category:

Description

A fine and scientifically significant split nodule fossil ammonite of Grammoceras thouarsense, originating from the Upper Toarcian stage of the Early Jurassic, collected from Saltwick Bay, North Yorkshire, United Kingdom. This beautifully preserved ammonite is neatly displayed within its original limestone nodule, which has been split to reveal the intricate internal and external detail of the fossil.

  • Fossil Type: Ammonite (extinct marine cephalopod)
  • Species: Grammoceras thouarsense
  • Format: Split nodule – both halves included
  • Size: See image with 1cm scale cube for reference
  • Geological Period: Jurassic
  • Stage: Upper Toarcian (~182–174 million years ago)
  • Locality: Saltwick Bay, North Yorkshire, England, UK
  • Family: Hildoceratidae
  • Superfamily: Hildoceratoidea
  • Order: Ammonitida
  • Depositional Environment: Low-energy marine shelf with fine-grained mudstones and calcareous concretions; classic Toarcian marine preservation

Geological & Scientific Significance:

Grammoceras thouarsense is a widely recognised ammonite species of the Upper Toarcian, known for its very flat, discoidal shell, fine ribbing, and open umbilicus. It is a key zonal fossil in European biostratigraphy, often associated with the Thouarsense Zone, which helps geologists correlate strata across vast regions of the Jurassic world.

This ammonite thrived in offshore environments during the early phase of a global recovery following the early Toarcian Oceanic Anoxic Event (T-OAE), a significant episode in Earth’s climatic and oceanographic history.

Saltwick Bay is a famous Yorkshire coast fossil locality within the Whitby Mudstone Formation, rich in ammonites, marine reptiles, belemnites, and fossilised wood. Its nodular concretions often preserve ammonites in exquisite detail due to rapid burial and early mineralisation.

Notable Features:

  • Neatly split nodule showing internal and external views of the ammonite
  • Extremely flat, planispiral form with fine ribbing and sharp detail
  • From a world-renowned Jurassic fossil locality
  • Highly collectable and ideal for display or study

Authenticity Guaranteed: All of our fossils are 100% genuine. This specimen comes with a Certificate of Authenticity, verifying its identity and origin.

Photo Disclosure: The fossil pictured is the exact one you will receive. The scale rule shows 1cm squares for accurate sizing.

This Grammoceras thouarsense ammonite from Saltwick Bay is a stunning display piece and an invaluable reference specimen—perfect for collectors, educators, and Jurassic enthusiasts alike.

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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