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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PSEUDOLIOCERAS compactile Ammonite Fossil – Pliensbachian Jurassic, North Yorkshire UK

PSEUDOLIOCERAS compactile Ammonite Fossil – Pliensbachian Jurassic, North Yorkshire UK

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

For sale is a rare and well-preserved ammonite fossil, PSEUDOLIOCERAS compactile, collected from the Pliensbachian Stage of the Early Jurassic, found in North Yorkshire, United Kingdom. This ammonite comes from one of Britain’s most iconic fossil-rich regions and represents a beautifully coiled marine cephalopod from nearly 185 million years ago.

Fossil Type & Species:

  • Type: Ammonite (Extinct Marine Cephalopod)
  • Species: Pseudolioceras compactile
  • Known for its compressed shell, fine ribbing, and well-defined suture lines

Geological Context:

  • Era: Mesozoic
  • Period: Jurassic
  • Epoch: Early Jurassic
  • Stage: Pliensbachian (~190 to 183 million years ago)
  • Formation: Likely part of the Whitby Mudstone Formation or Staithes Sandstone Formation
  • Depositional Environment: Shallow marine shelf with fine clay and silt deposits; ideal for preserving delicate shell features. Marine anoxic conditions periodically contributed to exceptional fossil preservation

Morphological Features:

  • Finely ribbed, involute, and compressed shell with narrow venter
  • Whorls closely coiled with a small to moderate umbilicus
  • Typical diameter ranges between 4–7 cm depending on growth stage
  • Shell often mineralised in iron oxide or grey calcite when preserved in Yorkshire shales

Scientific Importance:

  • Pseudolioceras compactile is widely used in biostratigraphic correlation across Lower Jurassic European sequences
  • A key ammonite for defining biozones in the middle to late Pliensbachian
  • This genus marks important phases of ammonoid radiation and faunal turnover

Locality Information:

  • North Yorkshire, UK – part of the famed Yorkshire Jurassic Coast, including the Whitby and Staithes areas, known globally for spectacular fossil exposures from the Early Jurassic

Authenticity & Display:

All of our fossils are 100% Genuine Specimens and come with a Certificate of Authenticity. The photos show the actual specimen you will receive. Sizing is clearly shown in the listing image – scale cube = 1cm.

This is a hand-selected fossil of Pseudolioceras compactile, ideal for collectors of classic British ammonites, palaeontological educators, or natural history enthusiasts.

Add a scientifically important ammonite from the Lower Jurassic seas of Yorkshire to your collection today—preserved for over 180 million years!

(Actual as seen)

Only 1 left in stock

SKU: UF3457 Category:

Description

For sale is a rare and well-preserved ammonite fossil, PSEUDOLIOCERAS compactile, collected from the Pliensbachian Stage of the Early Jurassic, found in North Yorkshire, United Kingdom. This ammonite comes from one of Britain’s most iconic fossil-rich regions and represents a beautifully coiled marine cephalopod from nearly 185 million years ago.

Fossil Type & Species:

  • Type: Ammonite (Extinct Marine Cephalopod)
  • Species: Pseudolioceras compactile
  • Known for its compressed shell, fine ribbing, and well-defined suture lines

Geological Context:

  • Era: Mesozoic
  • Period: Jurassic
  • Epoch: Early Jurassic
  • Stage: Pliensbachian (~190 to 183 million years ago)
  • Formation: Likely part of the Whitby Mudstone Formation or Staithes Sandstone Formation
  • Depositional Environment: Shallow marine shelf with fine clay and silt deposits; ideal for preserving delicate shell features. Marine anoxic conditions periodically contributed to exceptional fossil preservation

Morphological Features:

  • Finely ribbed, involute, and compressed shell with narrow venter
  • Whorls closely coiled with a small to moderate umbilicus
  • Typical diameter ranges between 4–7 cm depending on growth stage
  • Shell often mineralised in iron oxide or grey calcite when preserved in Yorkshire shales

Scientific Importance:

  • Pseudolioceras compactile is widely used in biostratigraphic correlation across Lower Jurassic European sequences
  • A key ammonite for defining biozones in the middle to late Pliensbachian
  • This genus marks important phases of ammonoid radiation and faunal turnover

Locality Information:

  • North Yorkshire, UK – part of the famed Yorkshire Jurassic Coast, including the Whitby and Staithes areas, known globally for spectacular fossil exposures from the Early Jurassic

Authenticity & Display:

All of our fossils are 100% Genuine Specimens and come with a Certificate of Authenticity. The photos show the actual specimen you will receive. Sizing is clearly shown in the listing image – scale cube = 1cm.

This is a hand-selected fossil of Pseudolioceras compactile, ideal for collectors of classic British ammonites, palaeontological educators, or natural history enthusiasts.

Add a scientifically important ammonite from the Lower Jurassic seas of Yorkshire to your collection today—preserved for over 180 million years!

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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