Properisphinctes variocostatus Ammonite Fossil - Upper Oxfordian Jurassic - France - Genuine with Certificate
£ 6.90
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 classificationsScientific 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 qualityIdeal For:
• Fossil collectors and Jurassic ammonite enthusiasts
• Academic and educational reference
• Museum-quality fossil display
• Unique gift for lovers of palaeontology and natural historyAdd 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.
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 classificationsScientific 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 qualityIdeal For:
• Fossil collectors and Jurassic ammonite enthusiasts
• Academic and educational reference
• Museum-quality fossil display
• Unique gift for lovers of palaeontology and natural historyAdd 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.
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