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Rare Indosphinctes lobatus Fossil Ammonite | Lower Callovian Jurassic | Montreuil-Bellay France | Genuine Certified Specimen
Rare Indosphinctes lobatus Fossil Ammonite | Lower Callovian Jurassic | Montreuil-Bellay France | Genuine Certified Specimen - Image 2

Rare Indosphinctes lobatus Fossil Ammonite | Lower Callovian Jurassic | Montreuil-Bellay France | Genuine Certified Specimen

£48.00

This rare Indosphinctes lobatus fossil ammonite is a stunning and scientifically significant specimen from the Lower Callovian stage of the Middle Jurassic, approximately 164 to 166 million years old. Collected from Montreuil-Bellay, France, a well-known fossil locality, this piece exemplifies excellent preservation and classic morphological features of the species.

Identified and catalogued from the Alice Purnell Collection, this ammonite is offered with complete provenance and comes with a Certificate of Authenticity. The photograph in this listing shows the exact specimen you will receive.

Geological & Taxonomic Details:

  • Fossil Type: Ammonite (Extinct marine mollusc)
  • Species: Indosphinctes lobatus
  • Geological Age: Middle Jurassic, Lower Callovian Stage
  • Locality: Montreuil-Bellay, Maine-et-Loire, France
  • Depositional Environment: Shallow epicontinental sea, sedimented in a marine clay-limestone sequence
  • Family: Perisphinctidae
  • Superfamily: Perisphinctoidea
  • Order: Ammonitida

Morphological Features: This ammonite showcases the typical evolute coiling and pronounced ribbing of the Indosphinctes genus. The ribs are bifurcating, with gentle forward curving on the flanks, and form strong ornamentation. The umbilicus is broad, allowing clear visibility of inner whorls. These features make it a diagnostic and attractive specimen for both collectors and academic study.

Biozone & Zone (tentative): While specific zonation for this specimen is not confirmed, Indosphinctes species are commonly associated with the Macrocephalites macrocephalus Zone of the Lower Callovian.

Provenance & Notability: From the Alice Purnell Collection, this piece is part of a respected paleontological archive. Alice Purnell was known for her meticulous documentation and careful specimen curation, making this ammonite a collector’s gem.

Additional Information:

  • All of our fossils are 100% genuine specimens and come with a Certificate of Authenticity.
  • The photo shows the actual specimen you will receive.
  • Scale cubes/squares = 1 cm for size reference. Please see images for full sizing details.

Whether you are a collector, student, or simply a lover of natural history, this Indosphinctes ammonite represents a unique opportunity to own a real piece of Earth’s deep past.

(Actual as seen)

Out of stock

SKU: AF1242 Category:

Description

This rare Indosphinctes lobatus fossil ammonite is a stunning and scientifically significant specimen from the Lower Callovian stage of the Middle Jurassic, approximately 164 to 166 million years old. Collected from Montreuil-Bellay, France, a well-known fossil locality, this piece exemplifies excellent preservation and classic morphological features of the species.

Identified and catalogued from the Alice Purnell Collection, this ammonite is offered with complete provenance and comes with a Certificate of Authenticity. The photograph in this listing shows the exact specimen you will receive.

Geological & Taxonomic Details:

  • Fossil Type: Ammonite (Extinct marine mollusc)
  • Species: Indosphinctes lobatus
  • Geological Age: Middle Jurassic, Lower Callovian Stage
  • Locality: Montreuil-Bellay, Maine-et-Loire, France
  • Depositional Environment: Shallow epicontinental sea, sedimented in a marine clay-limestone sequence
  • Family: Perisphinctidae
  • Superfamily: Perisphinctoidea
  • Order: Ammonitida

Morphological Features: This ammonite showcases the typical evolute coiling and pronounced ribbing of the Indosphinctes genus. The ribs are bifurcating, with gentle forward curving on the flanks, and form strong ornamentation. The umbilicus is broad, allowing clear visibility of inner whorls. These features make it a diagnostic and attractive specimen for both collectors and academic study.

Biozone & Zone (tentative): While specific zonation for this specimen is not confirmed, Indosphinctes species are commonly associated with the Macrocephalites macrocephalus Zone of the Lower Callovian.

Provenance & Notability: From the Alice Purnell Collection, this piece is part of a respected paleontological archive. Alice Purnell was known for her meticulous documentation and careful specimen curation, making this ammonite a collector’s gem.

Additional Information:

  • All of our fossils are 100% genuine specimens and come with a Certificate of Authenticity.
  • The photo shows the actual specimen you will receive.
  • Scale cubes/squares = 1 cm for size reference. Please see images for full sizing details.

Whether you are a collector, student, or simply a lover of natural history, this Indosphinctes ammonite represents a unique opportunity to own a real piece of Earth’s deep past.

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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