RARE Ammonite Cliosphinctes, Santonian, Cretaceous: Montana, USA – Genuine Fossil with Certificate of Authenticity

Description

This RARE Ammonite Cliosphinctes specimen from the Santonian stage of the Cretaceous period is a remarkable fossil from the Montana region, USA. Ammonites of the Cliosphinctes genus are known for their distinct coiling and intricate shell structure, making them highly sought after by collectors and fossil enthusiasts alike. This fossil is an excellent example of Santonian marine life and offers both scientific value and visual appeal.

Geology and Fossil Type

• Fossil Type: Ammonite
• Species: Cliosphinctes
• Geological Stage: Santonian, Cretaceous
• Depositional Environment: Marine
• Zone: Pierre Shales, Fox Hills Sandstone
• Family: Oppeliidae
• Superfamily: Ammonoidea
• Order: Ammonitida

Morphology Features

• Coiled Shell: The fossil showcases the distinct coiling of the Cliosphinctes ammonite, characteristic of its species, which is prized for its elegant and symmetrical spiral.
• Distinctive Sutures: This fossil exhibits well-defined suture lines, which are characteristic of ammonites, highlighting its complex internal structure.
• Size and Shape: The specimen is well-preserved, with visible chambers and a perfectly rounded shape. The preserved whorls and shell structure are well-defined, ensuring it stands out as a high-quality fossil.

Notable Features

• Extremely Rare: Cliosphinctes is a relatively rare genus, making this Santonian ammonite fossil a highly valuable addition to any collection.
• Impressive Preservation: This specimen is beautifully preserved, allowing for the clear observation of the spiraled shell, chambers, and intricate details that contribute to its scientific and aesthetic value.
• Scientific Significance: The fossil provides insight into marine ecosystems during the Santonian stage of the Cretaceous period, offering a snapshot of ancient marine life.

Scientific and Historical Value

• The Santonian stage is part of the Late Cretaceous, a time of significant evolutionary changes in marine life. Fossils like Cliosphinctes ammonites help paleontologists understand the diversity and complexity of ancient marine environments.
• The Pierre Shales and Fox Hills Sandstone formations are famous for yielding high-quality fossils that provide vital information on Late Cretaceous marine fauna.

Size and Presentation

• Scale Cube: 1cm
• Full Size: Please refer to the photo for exact measurements. This specimen has been carefully chosen for its excellent quality and outstanding preservation.
• The photo shown is the actual specimen you will receive, ensuring you get exactly what you see.

Key Selling Points

• 100% Genuine Fossil
• Comes with a Certificate of Authenticity
• Extremely rare Cliosphinctes ammonite from the Santonian stage of the Cretaceous period
• Found in the Montana region, USA, specifically from Pierre Shales and Fox Hills Sandstone
• Beautifully preserved with well-defined coiling and suture lines
• Ideal for fossil collectors, scientific research, or as a unique display piece
• Perfect for marine life enthusiasts, ammonite collectors, or paleontology lovers

This RARE Ammonite Cliosphinctes from the Santonian stage, Cretaceous period, is a beautifully preserved specimen showcasing a distinct coiled shell and detailed suture lines. It comes with a Certificate of Authenticity, ensuring its genuine nature. This fossil is a fantastic addition to any collection, offering both scientific value and visual appeal.