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RARE Fossil Ammonite Eboraciceras dissimilis – Upper Callovian, Jurassic – Sées, France – Certified – Alice Purnell Collection
RARE Fossil Ammonite Eboraciceras dissimilis – Upper Callovian, Jurassic – Sées, France – Certified – Alice Purnell Collection - Image 2
RARE Fossil Ammonite Eboraciceras dissimilis – Upper Callovian, Jurassic – Sées, France – Certified – Alice Purnell Collection - Image 3

RARE Fossil Ammonite Eboraciceras dissimilis – Upper Callovian, Jurassic – Sées, France – Certified – Alice Purnell Collection

Original price was: £60.00.Current price is: £54.00.

RARE FOSSIL AMMONITE – EBORACICERAS DISSIMILIS – UPPER CALLOVIAN, MIDDLE JURASSIC – SÉES, FRANCE

This is an exceptionally well-preserved and rare fossil specimen of Eboraciceras dissimilis, an ammonite from the Upper Callovian stage of the Jurassic period. Discovered in the classic marine sediments near Sées, France, this fossil is part of the prestigious Alice Purnell Collection—a name trusted in fossil curation and integrity.

The fossil pictured is the exact specimen you will receive, carefully photographed with a 1cm scale cube for precise sizing reference. The ammonite comes with a Certificate of Authenticity, verifying it as a 100% genuine specimen.

GEOLOGICAL & TAXONOMIC INFORMATION:

  • Species: Eboraciceras dissimilis
  • Genus: Eboraciceras
  • Geological Period: Middle Jurassic
  • Stage: Upper Callovian (approx. 164–161 million years ago)
  • Locality: Sées, Normandy, France
  • Depositional Environment: Shallow marine carbonate shelf; low-energy basin environment suitable for ammonite habitation
  • Biozone: Likely correlates with the Gracilis or Jason Zones of the Upper Callovian
  • Family: Perisphinctidae
  • Superfamily: Perisphinctoidea
  • Order: Ammonitida
  • Class: Cephalopoda
  • Phylum: Mollusca
  • Described by: (Arkell, 1956)

MORPHOLOGICAL FEATURES:

Eboraciceras dissimilis exhibits the classic features of upper Callovian perisphinctid ammonites, including:

  • Compressed and involute shell structure
  • Moderately wide umbilicus
  • Dense ribbing that bifurcates along the flanks
  • Rounded venter lacking a keel
  • These traits are diagnostic and help distinguish it from other ammonites in the region and stage, making this specimen valuable for both collectors and stratigraphers.

NOTABLE FEATURES:

  • Rare species, infrequently available on the commercial market
  • Excellent preservation of ribbing and shell geometry
  • Historically collected and curated under the Alice Purnell Collection
  • Ideal for display, teaching, or as an investment fossil
  • Comes with a Certificate of Authenticity
  • Photographed with 1cm scale cube – you will receive this exact specimen

SUMMARY:

  • Species: Eboraciceras dissimilis
  • Age: Upper Callovian, Middle Jurassic (~164–161 Ma)
  • Location: Sées, France
  • Preservation: Fine detail of shell and ribbing visible
  • Collection: Alice Purnell
  • Authenticity: Guaranteed 100% genuine with certificate
  • Photographed Specimen: Yes – what you see is what you get

This fossil ammonite is a prime specimen from the Middle Jurassic seas of France, showcasing evolutionary features key to the Perisphinctidae family. A must-have addition for any collector of classic European ammonites.

(Actual as seen)

Only 1 left in stock

SKU: AF1332 Category:

Description

RARE FOSSIL AMMONITE – EBORACICERAS DISSIMILIS – UPPER CALLOVIAN, MIDDLE JURASSIC – SÉES, FRANCE

This is an exceptionally well-preserved and rare fossil specimen of Eboraciceras dissimilis, an ammonite from the Upper Callovian stage of the Jurassic period. Discovered in the classic marine sediments near Sées, France, this fossil is part of the prestigious Alice Purnell Collection—a name trusted in fossil curation and integrity.

The fossil pictured is the exact specimen you will receive, carefully photographed with a 1cm scale cube for precise sizing reference. The ammonite comes with a Certificate of Authenticity, verifying it as a 100% genuine specimen.

GEOLOGICAL & TAXONOMIC INFORMATION:

  • Species: Eboraciceras dissimilis
  • Genus: Eboraciceras
  • Geological Period: Middle Jurassic
  • Stage: Upper Callovian (approx. 164–161 million years ago)
  • Locality: Sées, Normandy, France
  • Depositional Environment: Shallow marine carbonate shelf; low-energy basin environment suitable for ammonite habitation
  • Biozone: Likely correlates with the Gracilis or Jason Zones of the Upper Callovian
  • Family: Perisphinctidae
  • Superfamily: Perisphinctoidea
  • Order: Ammonitida
  • Class: Cephalopoda
  • Phylum: Mollusca
  • Described by: (Arkell, 1956)

MORPHOLOGICAL FEATURES:

Eboraciceras dissimilis exhibits the classic features of upper Callovian perisphinctid ammonites, including:

  • Compressed and involute shell structure
  • Moderately wide umbilicus
  • Dense ribbing that bifurcates along the flanks
  • Rounded venter lacking a keel
  • These traits are diagnostic and help distinguish it from other ammonites in the region and stage, making this specimen valuable for both collectors and stratigraphers.

NOTABLE FEATURES:

  • Rare species, infrequently available on the commercial market
  • Excellent preservation of ribbing and shell geometry
  • Historically collected and curated under the Alice Purnell Collection
  • Ideal for display, teaching, or as an investment fossil
  • Comes with a Certificate of Authenticity
  • Photographed with 1cm scale cube – you will receive this exact specimen

SUMMARY:

  • Species: Eboraciceras dissimilis
  • Age: Upper Callovian, Middle Jurassic (~164–161 Ma)
  • Location: Sées, France
  • Preservation: Fine detail of shell and ribbing visible
  • Collection: Alice Purnell
  • Authenticity: Guaranteed 100% genuine with certificate
  • Photographed Specimen: Yes – what you see is what you get

This fossil ammonite is a prime specimen from the Middle Jurassic seas of France, showcasing evolutionary features key to the Perisphinctidae family. A must-have addition for any collector of classic European ammonites.

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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