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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AGASSICERAS scipionanum Ammonite Fossil – Upper Pliensbachian Jurassic, Whitby Yorkshire UK

AGASSICERAS scipionanum Ammonite Fossil – Upper Pliensbachian Jurassic, Whitby Yorkshire UK

Original price was: £36.00.Current price is: £32.40.

This listing features a well-preserved specimen of AGASSICERAS scipionanum, an elegant ammonite from the Upper Pliensbachian Stage of the Early Jurassic, found near Whitby, North Yorkshire, UK. With its sharp ribbing and compact shape, this ammonite is a superb example of Lower Jurassic cephalopod diversity along the famous Yorkshire Coast.

Fossil Type & Species:

  • Type: Ammonite (Extinct Marine Cephalopod)
  • Species: Agassiceras scipionanum
  • Distinguished by its dense, straight ribbing and narrow discoidal shell

Geological Context:

  • Era: Mesozoic
  • Period: Jurassic
  • Epoch: Early Jurassic
  • Stage: Upper Pliensbachian (~186 to 183 million years ago)
  • Formation: Whitby Mudstone Formation
  • Depositional Environment: Quiet offshore marine setting with finely laminated muds and clays; excellent preservation potential due to frequent anoxic events

Morphological Features:

  • Sharply ribbed, involute and compressed shell with a small umbilicus
  • Narrow venter and strongly defined ribs running straight across the flanks
  • Fine mineralisation may occur in iron oxide or calcite, depending on local preservation

Scientific Importance:

  • Agassiceras scipionanum is an important biostratigraphic indicator within the Upper Pliensbachian ammonite zones
  • It plays a role in the definition of key biozones used across Europe in Jurassic stratigraphy
  • Represents a transitional morphology within evolving ammonite lineages during the Early Jurassic

Locality Information:

  • Whitby, North Yorkshire, UK – one of the world’s premier fossil localities. The cliffs and foreshore exposures yield an exceptional diversity of ammonites, reptiles, and marine invertebrates from the Lower Jurassic

Authenticity & Display:

All of our fossils are 100% Genuine Specimens and come with a Certificate of Authenticity. The images in this listing show the exact specimen you will receive. Please refer to the photos for full sizing – the scale cube = 1cm.

This is a carefully selected fossil of Agassiceras scipionanum, ideal for collectors of British ammonites, educational settings, or palaeontology enthusiasts.

Own a true piece of Jurassic marine history—over 183 million years old, from the iconic fossil beds of Whitby.

(Actual as seen)

Only 1 left in stock

SKU: UF3458 Category:

Description

This listing features a well-preserved specimen of AGASSICERAS scipionanum, an elegant ammonite from the Upper Pliensbachian Stage of the Early Jurassic, found near Whitby, North Yorkshire, UK. With its sharp ribbing and compact shape, this ammonite is a superb example of Lower Jurassic cephalopod diversity along the famous Yorkshire Coast.

Fossil Type & Species:

  • Type: Ammonite (Extinct Marine Cephalopod)
  • Species: Agassiceras scipionanum
  • Distinguished by its dense, straight ribbing and narrow discoidal shell

Geological Context:

  • Era: Mesozoic
  • Period: Jurassic
  • Epoch: Early Jurassic
  • Stage: Upper Pliensbachian (~186 to 183 million years ago)
  • Formation: Whitby Mudstone Formation
  • Depositional Environment: Quiet offshore marine setting with finely laminated muds and clays; excellent preservation potential due to frequent anoxic events

Morphological Features:

  • Sharply ribbed, involute and compressed shell with a small umbilicus
  • Narrow venter and strongly defined ribs running straight across the flanks
  • Fine mineralisation may occur in iron oxide or calcite, depending on local preservation

Scientific Importance:

  • Agassiceras scipionanum is an important biostratigraphic indicator within the Upper Pliensbachian ammonite zones
  • It plays a role in the definition of key biozones used across Europe in Jurassic stratigraphy
  • Represents a transitional morphology within evolving ammonite lineages during the Early Jurassic

Locality Information:

  • Whitby, North Yorkshire, UK – one of the world’s premier fossil localities. The cliffs and foreshore exposures yield an exceptional diversity of ammonites, reptiles, and marine invertebrates from the Lower Jurassic

Authenticity & Display:

All of our fossils are 100% Genuine Specimens and come with a Certificate of Authenticity. The images in this listing show the exact specimen you will receive. Please refer to the photos for full sizing – the scale cube = 1cm.

This is a carefully selected fossil of Agassiceras scipionanum, ideal for collectors of British ammonites, educational settings, or palaeontology enthusiasts.

Own a true piece of Jurassic marine history—over 183 million years old, from the iconic fossil beds of Whitby.

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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