VERY RARE Heteromorph Ammonite Scaphites – Hoploscaphites conradi, Pierre Shales, Maastrichtian, Late Cretaceous, USA – COA

Description

This VERY RARE Heteromorph ammonite fossil, Scaphites – Hoploscaphites conradi, is an exceptional and highly collectible specimen from the Pierre Shales and Fox Hills Sandstone formations of Egremont, South Dakota, USA. This 100% genuine specimen is from the Maastrichtian, Late Cretaceous period, and comes with a Certificate of Authenticity. The Hoploscaphites conradi is a heteromorphic ammonite, characterized by its distinct, coiled shape, making it a prized piece for fossil collectors and enthusiasts of Cretaceous ammonites.

Geology and Fossil Type

• Geological Stage: Maastrichtian, Late Cretaceous
• Depositional Environment: Marine (During the Maastrichtian period, the Pierre Shales and Fox Hills Sandstone were marine environments, ideal for the growth of ammonites like Hoploscaphites conradi. The ammonite fossil was preserved in the marine deposits from these environments in South Dakota.)
• Family: Scaphitidae (The Hoploscaphites conradi species is a member of the Scaphitidae family, a group of ammonites with distinct coiling and asymmetrical features.)
• Superfamily: Ammonoidea
• Order: Ammonitida (Ammonites, like Hoploscaphites conradi, belong to the Cephalopoda class, which is closely related to modern-day squid, octopuses, and cuttlefish.)

Morphology Features

This Hoploscaphites conradi ammonite is a heteromorphic ammonite, which means its shell is coiled in a distinct, non-typical spiral shape. Unlike other ammonites, the Hoploscaphites conradi has a distinctive, knobby appearance, characterized by its irregular coiling and pronounced ribbing along the shell’s surface. The shell features tightly packed whorls and complex suture lines, typical of Scaphitidae ammonites. The suture lines and bumpy texture are key features that add to the specimen’s visual appeal.

Notable Features

• Very Rare Heteromorph: The Hoploscaphites conradi ammonite is a rare and highly sought-after specimen, prized for its distinct heteromorphic coiling and well-defined surface details.
• Preserved Details: The fossil’s distinct ribbing, knobby texture, and asymmetrical shape make it visually striking and scientifically valuable.
• Size: The specimen being offered here is carefully chosen for its excellent preservation and well-defined features, making it a standout piece for collectors.
• Scientific Value: The Hoploscaphites conradi is a valuable piece for understanding the marine ecosystems of the Late Cretaceous period, particularly in the Pierre Shales and Fox Hills Sandstone deposits.

Size and Presentation

• Scale Cube: 1cm
• Full sizing is provided in the photos, so you can see the exact size of the ammonite.
• Actual Fossil: The fossil pictured is the exact piece you will receive.

Key Selling Points

• 100% Genuine Fossil
• Comes with a Certificate of Authenticity
• A rare and unique Hoploscaphites conradi ammonite from the Maastrichtian, Late Cretaceous period
• Distinct, knobby appearance, irregular coiling, and preserved ribbing
• Perfect for collectors and those interested in Cretaceous ammonites and marine fossils

This Hoploscaphites conradi fossil from the Pierre Shales and Fox Hills Sandstone in Egremont, South Dakota, USA is a remarkable specimen from the Maastrichtian, Late Cretaceous period. Its knobby appearance, asymmetric coiling, and well-preserved details make it a highly prized piece for fossil collectors and those with a keen interest in Cretaceous ammonites and marine life.