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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Grossouvria kontkiewiczi Fossil Ammonite – Oxfordian Jurassic – Madagascar – Authentic with Certificate – Display Specimen

Original price was: £9.60.Current price is: £8.64.

This listing features a stunning and 100% authentic Grossouvria kontkiewiczi fossil ammonite from the Oxfordian Stage of the Upper Jurassic, discovered in Madagascar. This is a scientifically notable and visually appealing ammonite species, representing the complex and highly ornamented lineage of Late Jurassic ammonoids.

This is a genuine fossil specimen, selected for quality and preservation. The photo shows the exact item you will receive, with a scale cube (1cm) included for accurate sizing—please refer to the images for full dimensions.

Species & Classification:

  • Species: Grossouvria kontkiewiczi
  • Genus: Grossouvria
  • Family: Grossouvriidae
  • Superfamily: Perisphinctoidea
  • Order: Ammonitida
  • Class: Cephalopoda
  • Phylum: Mollusca

Geological & Stratigraphic Context:

  • Period: Jurassic
  • Epoch: Late Jurassic
  • Stage: Oxfordian (approx. 163.5 – 157.3 million years ago)
  • Locality: Morondava Basin Region, Madagascar
  • Depositional Environment: Shallow epicontinental sea with carbonate-rich sedimentation
  • Geological Significance: The Oxfordian ammonite faunas of Madagascar are of major stratigraphic importance, enabling wide biostratigraphic correlation across Gondwanan continents.

Morphology & Features:

  • Strongly ribbed, moderately involute shell
  • Characteristic bifurcating ribs that may terminate in small tubercles
  • Often shows a compressed whorl section with a sharp venter
  • The ornamentation is diagnostic for Grossouvria and useful in Jurassic zonation studies
  • Beautiful preservation often enhanced by natural mineralisation in the matrix

Notable Facts:

  • Grossouvria kontkiewiczi is named in honour of Russian palaeontologist Professor Kontkiewicz and belongs to a genus identified and described in the 19th century by E. Haug and other European palaeontologists.
  • Specimens from Madagascar provide exceptional clarity for study due to their three-dimensional preservation in limestone nodules.

Why Buy This Fossil?

  • ✔ 100% Genuine and legally sourced fossil
  • ✔ Comes with a Certificate of Authenticity
  • ✔ Scientifically significant species from a classic Jurassic locality
  • ✔ Exact specimen as pictured – no surprises
  • ✔ Ideal for collectors, educators, or as a stunning display piece

This Grossouvria kontkiewiczi fossil ammonite is a rare and valuable addition to any collection, offering both visual appeal and palaeontological importance. Don’t miss the opportunity to own a remarkable fossil from the heart of Jurassic Madagascar.

(Actual as seen)

Only 1 left in stock

SKU: SF0503 Category:

Description

This listing features a stunning and 100% authentic Grossouvria kontkiewiczi fossil ammonite from the Oxfordian Stage of the Upper Jurassic, discovered in Madagascar. This is a scientifically notable and visually appealing ammonite species, representing the complex and highly ornamented lineage of Late Jurassic ammonoids.

This is a genuine fossil specimen, selected for quality and preservation. The photo shows the exact item you will receive, with a scale cube (1cm) included for accurate sizing—please refer to the images for full dimensions.

Species & Classification:

  • Species: Grossouvria kontkiewiczi
  • Genus: Grossouvria
  • Family: Grossouvriidae
  • Superfamily: Perisphinctoidea
  • Order: Ammonitida
  • Class: Cephalopoda
  • Phylum: Mollusca

Geological & Stratigraphic Context:

  • Period: Jurassic
  • Epoch: Late Jurassic
  • Stage: Oxfordian (approx. 163.5 – 157.3 million years ago)
  • Locality: Morondava Basin Region, Madagascar
  • Depositional Environment: Shallow epicontinental sea with carbonate-rich sedimentation
  • Geological Significance: The Oxfordian ammonite faunas of Madagascar are of major stratigraphic importance, enabling wide biostratigraphic correlation across Gondwanan continents.

Morphology & Features:

  • Strongly ribbed, moderately involute shell
  • Characteristic bifurcating ribs that may terminate in small tubercles
  • Often shows a compressed whorl section with a sharp venter
  • The ornamentation is diagnostic for Grossouvria and useful in Jurassic zonation studies
  • Beautiful preservation often enhanced by natural mineralisation in the matrix

Notable Facts:

  • Grossouvria kontkiewiczi is named in honour of Russian palaeontologist Professor Kontkiewicz and belongs to a genus identified and described in the 19th century by E. Haug and other European palaeontologists.
  • Specimens from Madagascar provide exceptional clarity for study due to their three-dimensional preservation in limestone nodules.

Why Buy This Fossil?

  • ✔ 100% Genuine and legally sourced fossil
  • ✔ Comes with a Certificate of Authenticity
  • ✔ Scientifically significant species from a classic Jurassic locality
  • ✔ Exact specimen as pictured – no surprises
  • ✔ Ideal for collectors, educators, or as a stunning display piece

This Grossouvria kontkiewiczi fossil ammonite is a rare and valuable addition to any collection, offering both visual appeal and palaeontological importance. Don’t miss the opportunity to own a remarkable fossil from the heart of Jurassic Madagascar.

Additional information

Era

Jurassic

Origin

Madagascar

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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