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Rare 9.5″ acanthoceras giant fossil ammonite – cenomanian, cretaceous, agadir, morocco – genuine specimen with coa

£180.00

This is a rare and impressive 9.5-inch Acanthoceras ammonite fossil, dating back to the Cenomanian stage of the Late Cretaceous period (~100-94 million years ago), discovered in Agadir, Morocco. Acanthoceras is a genus of large ammonites known for their robust shells, strong ribbing, and tuberculate ornamentation, which helped these marine cephalopods thrive in Cretaceous seas.

Ammonites like Acanthoceras played a vital role in marine ecosystems, serving as both predators and prey. This well-preserved fossil showcases the distinctive coiled shell structure and ribbed pattern that make this species highly collectible and scientifically significant.

Geological Information:

  • Formation: Cretaceous Marine Deposits
  • Stage: Cenomanian (~100-94 million years old)
  • Location: Agadir, Morocco
  • Depositional Environment: Shallow marine seafloor with carbonate-rich sediments

Fossil Characteristics:

  • Large, thick-walled shell with strong ribbing and tuberculate ornamentation
  • Well-preserved with clear growth patterns and sutures
  • Rare Late Cretaceous ammonite from North Africa
  • Highly collectible specimen from a renowned fossil locality

Key Features:

  • Authentic Acanthoceras fossil ammonite
  • Impressive 9.5-inch specimen with excellent preservation
  • From the Alice Purnell Collection
  • 100% genuine specimen with Certificate of Authenticity

Scale Rule / Cube = 1cm – Please refer to the photos for accurate sizing.

All fossils are securely packaged for worldwide shipping.

(Actual as seen)

Out of stock

SKU: AF0526 Category:

Description

This is a rare and impressive 9.5-inch Acanthoceras ammonite fossil, dating back to the Cenomanian stage of the Late Cretaceous period (~100-94 million years ago), discovered in Agadir, Morocco. Acanthoceras is a genus of large ammonites known for their robust shells, strong ribbing, and tuberculate ornamentation, which helped these marine cephalopods thrive in Cretaceous seas.

Ammonites like Acanthoceras played a vital role in marine ecosystems, serving as both predators and prey. This well-preserved fossil showcases the distinctive coiled shell structure and ribbed pattern that make this species highly collectible and scientifically significant.

Geological Information:

  • Formation: Cretaceous Marine Deposits
  • Stage: Cenomanian (~100-94 million years old)
  • Location: Agadir, Morocco
  • Depositional Environment: Shallow marine seafloor with carbonate-rich sediments

Fossil Characteristics:

  • Large, thick-walled shell with strong ribbing and tuberculate ornamentation
  • Well-preserved with clear growth patterns and sutures
  • Rare Late Cretaceous ammonite from North Africa
  • Highly collectible specimen from a renowned fossil locality

Key Features:

  • Authentic Acanthoceras fossil ammonite
  • Impressive 9.5-inch specimen with excellent preservation
  • From the Alice Purnell Collection
  • 100% genuine specimen with Certificate of Authenticity

Scale Rule / Cube = 1cm – Please refer to the photos for accurate sizing.

All fossils are securely packaged for worldwide shipping.

Additional information

Weight 0.1 g
Dimensions 10 × 10 × 10 cm
Era

Cretaceous

Origin

Morocco

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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