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RARE MANTELLICERAS isovokyense Fossil Ammonite – Lower Cenomanian, Cretaceous: Madagascar – Alice Purnell Collection – Certified Specimen
RARE MANTELLICERAS isovokyense Fossil Ammonite – Lower Cenomanian, Cretaceous: Madagascar – Alice Purnell Collection – Certified Specimen - Image 2
RARE MANTELLICERAS isovokyense Fossil Ammonite – Lower Cenomanian, Cretaceous: Madagascar – Alice Purnell Collection – Certified Specimen - Image 3

RARE MANTELLICERAS isovokyense Fossil Ammonite – Lower Cenomanian, Cretaceous: Madagascar – Alice Purnell Collection – Certified Specimen

£60.00

A beautiful and scientifically significant rare fossil ammonite, Mantelliceras isovokyense, from the Lower Cenomanian of Madagascar, offered from the esteemed Alice Purnell Collection. This well-preserved example showcases the classic features of a genus that thrived during the early stages of the Late Cretaceous.

Mantelliceras isovokyense belongs to a group of planispiral ammonites known for their moderately involute shells and strong ribbing. The shell typically exhibits robust radial ribs and a rounded to slightly compressed whorl section, indicative of its placement in the family Acanthoceratidae.

Geological & Scientific Details:

  • Scientific Name: Mantelliceras isovokyense
  • Fossil Type: Ammonite
  • Geological Period: Cretaceous
  • Geological Stage: Lower Cenomanian
  • Location Found: Madagascar
  • Order: Ammonitida
  • Superfamily: Acanthoceratoidea
  • Family: Acanthoceratidae
  • Morphological Features: Strong radial ribbing, moderately involute whorls, typical planispiral shape
  • Depositional Environment: Shallow marine platform environments, rich in invertebrate fauna
  • Biozone/Zone: Often associated with Lower Cenomanian ammonite assemblages used for regional stratigraphic correlation

This fossil offers both visual appeal and scientific value, capturing a snapshot of Cretaceous marine biodiversity. It’s an excellent addition for collectors, educators, or anyone intrigued by the evolutionary history of ammonites.

All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.

Please Note:

  • Scale Rule Squares / Cube = 1cm – please see photos for full sizing
  • The specimen in the image is the exact one you will receive
  • Sourced from the authenticated and reputable Alice Purnell Collection

A stunning example of Cretaceous ammonite preservation from Madagascar—rare, academically relevant, and aesthetically striking.

(Actual as seen)

Out of stock

SKU: AF1223 Category:

Description

A beautiful and scientifically significant rare fossil ammonite, Mantelliceras isovokyense, from the Lower Cenomanian of Madagascar, offered from the esteemed Alice Purnell Collection. This well-preserved example showcases the classic features of a genus that thrived during the early stages of the Late Cretaceous.

Mantelliceras isovokyense belongs to a group of planispiral ammonites known for their moderately involute shells and strong ribbing. The shell typically exhibits robust radial ribs and a rounded to slightly compressed whorl section, indicative of its placement in the family Acanthoceratidae.

Geological & Scientific Details:

  • Scientific Name: Mantelliceras isovokyense
  • Fossil Type: Ammonite
  • Geological Period: Cretaceous
  • Geological Stage: Lower Cenomanian
  • Location Found: Madagascar
  • Order: Ammonitida
  • Superfamily: Acanthoceratoidea
  • Family: Acanthoceratidae
  • Morphological Features: Strong radial ribbing, moderately involute whorls, typical planispiral shape
  • Depositional Environment: Shallow marine platform environments, rich in invertebrate fauna
  • Biozone/Zone: Often associated with Lower Cenomanian ammonite assemblages used for regional stratigraphic correlation

This fossil offers both visual appeal and scientific value, capturing a snapshot of Cretaceous marine biodiversity. It’s an excellent addition for collectors, educators, or anyone intrigued by the evolutionary history of ammonites.

All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.

Please Note:

  • Scale Rule Squares / Cube = 1cm – please see photos for full sizing
  • The specimen in the image is the exact one you will receive
  • Sourced from the authenticated and reputable Alice Purnell Collection

A stunning example of Cretaceous ammonite preservation from Madagascar—rare, academically relevant, and aesthetically striking.

Additional information

Era

Cretaceous
Origin

Madagascar

Cretaceous Information

The Cretaceous Period (145–66 million years ago) was the final era of the Mesozoic, marked by the dominance of dinosaurs and the rise of flowering plants. It had a warm, greenhouse climate, with high sea levels that created vast shallow inland seas. Marine life flourished, including mosasaurs, ammonites, and rudist reefs, while the land was ruled by iconic dinosaurs like Tyrannosaurus rex, Triceratops, and Spinosaurus. Mammals and birds diversified, and insects thrived. The period ended with the mass extinction event, likely caused by an asteroid impact, wiping out the dinosaurs and paving the way for the rise of mammals in the Cenozoic.

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