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Choffaticeras sp. Ammonite - Cut & Polished

Picture
Douvilleiceras Ammonite – MoroccoCretaceous Ammonoid Fossil Fossil Specimen
 

Quick FactsGenus: Douvilleiceras
Age: Early–Mid Cretaceous (Albian Stage, ~110–100 million years old)
Origin: Atlas Mountain Region, Morocco
Type: Ammonoid Cephalopod Fossil Habit: Thick, heavily ribbed, “tractor‑tread” ornamentation

THE SPECIMENThis specimen is a classic example of Douvilleiceras, one of the most recognizable ammonites from the Cretaceous of Morocco. These fossils are known for their massive, thick shells and coarse, gear‑like ribbing, which gives rise to the trade nickname “Tractor Ammonite.”
Key features include:
  • bold, raised ribs wrapping around each whorl
  • knobby tubercles and strong ornamentation
  • deep, complex suture lines
  • robust, three‑dimensional preservation
Many Moroccan specimens show natural desert polishing, giving them warm tones of tan, brown, or reddish ochre. Each fossil is unique, shaped by millions of years of sedimentation, mineral replacement, and desert weathering.

ABOUT THIS FINDThe LocalityThese ammonites come from Cretaceous marine deposits in the Atlas Mountains, a region famous for its rich fossil beds. During the Cretaceous, this area was part of a warm, shallow sea that supported abundant ammonoid life.
The region is known for:
  • high fossil density
  • excellent preservation
  • iron‑rich sediments that enhance detail
  • diverse ammonite genera
The FormationWhen Douvilleiceras died, their shells settled into soft seafloor mud. Over millions of years, the sediments lithified into limestone and marl, preserving the ammonites in remarkable detail.
The distinctive ribbing served biological purposes:
  • strengthening the shell
  • helping regulate buoyancy
  • providing hydrodynamic stability
Desert exposure later smoothed and highlighted the ribs, giving Moroccan specimens their iconic appearance.
​

MINERALOGY / FOSSIL COMPOSITIONMaterial: Original aragonite shell often replaced or infilled by:
  • calcite
  • iron‑oxide minerals
  • limestone matrix
Coloration: Warm tones of tan, brown, red, or sandy beige depending on mineral replacement and desert weathering.
Preservation Style: Typically preserved as full 3‑D shells, sometimes partially matrix‑embedded or naturally polished.
METAPHYSICAL PROPERTIESThe Stone of “Strength & Evolution”Ammonites are symbols of growth, resilience, and the spiral of life.
Grounding & Stability: Linked to the Root Chakra, these fossils are believed to anchor energy and promote emotional steadiness.
Transformation: The spiral form represents personal evolution, helping one move through life’s cycles with clarity and purpose.
Strength & Protection: The heavy ribbing of Douvilleiceras is often associated with:
  • resilience
  • endurance
  • protection from negative influences
Collectors use these fossils as reminders of ancient oceans, natural cycles, and the enduring strength of life.
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