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RARE Fossil Ammonite Otoites – Middle Bajocian, Jurassic – Calvados, France – Certified – Alice Purnell Collection
RARE Fossil Ammonite Otoites – Middle Bajocian, Jurassic – Calvados, France – Certified – Alice Purnell Collection - Image 2
RARE Fossil Ammonite Otoites – Middle Bajocian, Jurassic – Calvados, France – Certified – Alice Purnell Collection - Image 3

RARE Fossil Ammonite Otoites – Middle Bajocian, Jurassic – Calvados, France – Certified – Alice Purnell Collection

Original price was: £42.00.Current price is: £37.80.

RARE FOSSIL AMMONITE – OTOITES – MIDDLE BAJOCIAN STAGE, JURASSIC – CALVADOS, FRANCE

This is a beautifully preserved and rare fossil ammonite of the genus Otoites, dating to the Middle Bajocian Stage of the Jurassic Period, discovered in Calvados, Normandy, France. This specimen is part of the renowned Alice Purnell Collection and is accompanied by a Certificate of Authenticity.

The ammonite displayed in the photo is the exact piece you will receive. For scale, the squares/cube in the photo are 1cm each – full sizing details are best viewed in the image.

This is a striking and scientifically notable fossil, ideal for collectors, researchers, and educational display.

GEOLOGICAL & TAXONOMIC INFORMATION:

  • Genus: Otoites
  • Geological Period: Jurassic
  • Stage: Middle Bajocian (~170–168 million years ago)
  • Location: Calvados, Normandy, France
  • Depositional Environment: Shallow marine basin; typically associated with marl-limestone alternations in epicontinental seas
  • Family: Otoitidae
  • Superfamily: Stephanoceratoidea
  • Order: Ammonitida
  • Class: Cephalopoda
  • Phylum: Mollusca

Otoites is a diagnostic ammonite genus that is particularly significant within Bajocian ammonite biostratigraphy. While not always abundant, its presence is key in dating specific Middle Jurassic strata.

MORPHOLOGY FEATURES:

  • Strongly evolute shell
  • Whorls with coarse ribbing and often pronounced tuberculation
  • Deep umbilicus
  • Ventral keel may be present depending on preservation
  • These robust, ornamented shells reflect a nektonic (actively swimming) lifestyle in the mid-Jurassic seas.

BIOSTRATIGRAPHIC & ZONAL CONTEXT (if applicable):

Otoites is often associated with the Humphriesianum or Niortense Zones within the Middle Bajocian, depending on the regional lithostratigraphy in Normandy. These zones are key biostratigraphic indicators used across Western Europe.

NOTABLE FEATURES:

  • Rare genus in private collections
  • Excellent preservation with diagnostic features intact
  • Originates from classic Jurassic marine sediments of France
  • Sourced from the curated Alice Purnell Collection
  • Supplied with Certificate of Authenticity
  • Scale cube provided in photo for accurate measurement reference

SUMMARY:

  • Species/Genus: Otoites
  • Age: Middle Bajocian, Jurassic (~170–168 Ma)
  • Locality: Calvados, Normandy, France
  • Preservation: Excellent, robust shell with distinct ornamentation
  • Collection: Alice Purnell
  • Authenticity: Certified genuine specimen
  • Specimen Photo: You will receive the actual fossil pictured

A rare opportunity to acquire a mid-Jurassic ammonite of scientific and visual appeal, ideal for display, academic use, or personal collection.

(Actual as seen)

Only 1 left in stock

SKU: AF1334 Category:

Description

RARE FOSSIL AMMONITE – OTOITES – MIDDLE BAJOCIAN STAGE, JURASSIC – CALVADOS, FRANCE

This is a beautifully preserved and rare fossil ammonite of the genus Otoites, dating to the Middle Bajocian Stage of the Jurassic Period, discovered in Calvados, Normandy, France. This specimen is part of the renowned Alice Purnell Collection and is accompanied by a Certificate of Authenticity.

The ammonite displayed in the photo is the exact piece you will receive. For scale, the squares/cube in the photo are 1cm each – full sizing details are best viewed in the image.

This is a striking and scientifically notable fossil, ideal for collectors, researchers, and educational display.

GEOLOGICAL & TAXONOMIC INFORMATION:

  • Genus: Otoites
  • Geological Period: Jurassic
  • Stage: Middle Bajocian (~170–168 million years ago)
  • Location: Calvados, Normandy, France
  • Depositional Environment: Shallow marine basin; typically associated with marl-limestone alternations in epicontinental seas
  • Family: Otoitidae
  • Superfamily: Stephanoceratoidea
  • Order: Ammonitida
  • Class: Cephalopoda
  • Phylum: Mollusca

Otoites is a diagnostic ammonite genus that is particularly significant within Bajocian ammonite biostratigraphy. While not always abundant, its presence is key in dating specific Middle Jurassic strata.

MORPHOLOGY FEATURES:

  • Strongly evolute shell
  • Whorls with coarse ribbing and often pronounced tuberculation
  • Deep umbilicus
  • Ventral keel may be present depending on preservation
  • These robust, ornamented shells reflect a nektonic (actively swimming) lifestyle in the mid-Jurassic seas.

BIOSTRATIGRAPHIC & ZONAL CONTEXT (if applicable):

Otoites is often associated with the Humphriesianum or Niortense Zones within the Middle Bajocian, depending on the regional lithostratigraphy in Normandy. These zones are key biostratigraphic indicators used across Western Europe.

NOTABLE FEATURES:

  • Rare genus in private collections
  • Excellent preservation with diagnostic features intact
  • Originates from classic Jurassic marine sediments of France
  • Sourced from the curated Alice Purnell Collection
  • Supplied with Certificate of Authenticity
  • Scale cube provided in photo for accurate measurement reference

SUMMARY:

  • Species/Genus: Otoites
  • Age: Middle Bajocian, Jurassic (~170–168 Ma)
  • Locality: Calvados, Normandy, France
  • Preservation: Excellent, robust shell with distinct ornamentation
  • Collection: Alice Purnell
  • Authenticity: Certified genuine specimen
  • Specimen Photo: You will receive the actual fossil pictured

A rare opportunity to acquire a mid-Jurassic ammonite of scientific and visual appeal, ideal for display, academic use, or personal collection.

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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