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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Properisphinctes variocostatus Ammonite Fossil – Upper Oxfordian Jurassic – France – Genuine with Certificate

Original price was: £9.00.Current price is: £8.10.

This listing features a finely preserved Properisphinctes variocostatus ammonite fossil from the Upper Oxfordian Stage of the Late Jurassic, discovered in France. You will receive the exact specimen shown in the photos, with a 1cm scale cube or rule included for accurate size reference. Full measurements are available in the image gallery.

Geological and Scientific Information:

  • Fossil Type: Ammonite (extinct marine cephalopod)
  • Species: Properisphinctes variocostatus
  • Genus: Properisphinctes
  • Family: Perisphinctidae
  • Super Family: Perisphinctoidea
  • Order: Ammonitida
  • Geological Stage: Upper Oxfordian (Late Jurassic, approx. 158–154 million years ago)
  • Location: France (specific regional data not supplied)
  • Depositional Environment: Shallow marine environments with carbonate sedimentation and fine marl beds typical of the northern Tethyan margin
  • Biozone: Potentially associated with the Perisphinctes bifurcatus or Gregoryceras transversarium ammonite biozones
  • Morphology Features: Moderately evolute shell, well-marked radial ribbing with variable rib strength (“variocostatus”), and visible suture patterns; diagnostic of the genus
  • Notable Feature: The variability of ribbing makes it a key species for distinguishing Upper Oxfordian ammonite assemblages in Western Europe
  • Formally Identified By: Recognised and described by European palaeontologists working on Jurassic ammonite faunas in the 19th and 20th centuries, refining Perisphinctid classifications

Scientific Context: Properisphinctes variocostatus is an important ammonite species used in Upper Jurassic biostratigraphy. Known for its diverse ribbing and consistent preservation in French deposits, it aids in correlating sedimentary sequences across Western Europe. These fossils provide valuable insight into Jurassic marine biodiversity and evolutionary patterns.

Why Buy From Us?

  • All fossils are 100% genuine, natural, and legally sourced
  • Comes with a Certificate of Authenticity
  • The specimen in the photo is the exact one you’ll receive
  • Professionally cleaned and chosen for its visual and scientific quality

Ideal For:

  • Fossil collectors and Jurassic ammonite enthusiasts
  • Academic and educational reference
  • Museum-quality fossil display
  • Unique gift for lovers of palaeontology and natural history

Add a remarkable piece of Earth’s ancient ocean life to your collection with this Properisphinctes variocostatus ammonite fossil—an authentic and scientifically valuable relic from the Late Jurassic seas of France.

(Actual as seen)

Only 1 left in stock

SKU: SF0411 Category:

Description

This listing features a finely preserved Properisphinctes variocostatus ammonite fossil from the Upper Oxfordian Stage of the Late Jurassic, discovered in France. You will receive the exact specimen shown in the photos, with a 1cm scale cube or rule included for accurate size reference. Full measurements are available in the image gallery.

Geological and Scientific Information:

  • Fossil Type: Ammonite (extinct marine cephalopod)
  • Species: Properisphinctes variocostatus
  • Genus: Properisphinctes
  • Family: Perisphinctidae
  • Super Family: Perisphinctoidea
  • Order: Ammonitida
  • Geological Stage: Upper Oxfordian (Late Jurassic, approx. 158–154 million years ago)
  • Location: France (specific regional data not supplied)
  • Depositional Environment: Shallow marine environments with carbonate sedimentation and fine marl beds typical of the northern Tethyan margin
  • Biozone: Potentially associated with the Perisphinctes bifurcatus or Gregoryceras transversarium ammonite biozones
  • Morphology Features: Moderately evolute shell, well-marked radial ribbing with variable rib strength (“variocostatus”), and visible suture patterns; diagnostic of the genus
  • Notable Feature: The variability of ribbing makes it a key species for distinguishing Upper Oxfordian ammonite assemblages in Western Europe
  • Formally Identified By: Recognised and described by European palaeontologists working on Jurassic ammonite faunas in the 19th and 20th centuries, refining Perisphinctid classifications

Scientific Context: Properisphinctes variocostatus is an important ammonite species used in Upper Jurassic biostratigraphy. Known for its diverse ribbing and consistent preservation in French deposits, it aids in correlating sedimentary sequences across Western Europe. These fossils provide valuable insight into Jurassic marine biodiversity and evolutionary patterns.

Why Buy From Us?

  • All fossils are 100% genuine, natural, and legally sourced
  • Comes with a Certificate of Authenticity
  • The specimen in the photo is the exact one you’ll receive
  • Professionally cleaned and chosen for its visual and scientific quality

Ideal For:

  • Fossil collectors and Jurassic ammonite enthusiasts
  • Academic and educational reference
  • Museum-quality fossil display
  • Unique gift for lovers of palaeontology and natural history

Add a remarkable piece of Earth’s ancient ocean life to your collection with this Properisphinctes variocostatus ammonite fossil—an authentic and scientifically valuable relic from the Late Jurassic seas of France.

Additional information

Era

Jurassic

Origin

France

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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