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

Description

This VERY RARE Heteromorph ammonite fossil, Scaphites – Hoploscaphites conradi, is an extraordinary specimen from the Pierre Shales and Fox Hills Sandstone formations of Egremont, South Dakota, USA. This fossil is from the Maastrichtian, Late Cretaceous period, and is a 100% genuine specimen. It comes with a Certificate of Authenticity. The Hoploscaphites conradi is a heteromorphic ammonite, which is iridescent, adding to its rarity and appeal to collectors. The iridescence on the ammonite shell is especially noteworthy and makes it even more unique.

Geology and Fossil Type

• Geological Stage: Maastrichtian, Late Cretaceous
• Depositional Environment: Marine (The Pierre Shales and Fox Hills Sandstone formations were marine environments during the Maastrichtian period, where ammonites such as Hoploscaphites conradi thrived. The ammonite fossil is preserved in the marine deposits of South Dakota.)
• Family: Scaphitidae (The Hoploscaphites conradi species is part of the Scaphitidae family, a group of ammonites known for their distinct coiling and heteromorphic features.)
• Superfamily: Ammonoidea
• Order: Ammonitida (As with all ammonites, Hoploscaphites conradi belongs to the Cephalopoda class, closely related to modern squid, cuttlefish, and octopuses.)

Morphology Features

This Hoploscaphites conradi is a heteromorphic ammonite, meaning it features a distinct coiling pattern compared to typical ammonites. The shell is irregular, with bumpy ridges and a unique corkscrew-like shape. The fossil is notable for its iridescent sheen, which is a rare feature in ammonites, making this specimen even more desirable. The iridescence gives the fossil a striking, multi-colored shine, enhancing its visual appeal. The shell’s ribbing and suture lines are visible, providing more detail to the fossil’s morphology.

Notable Features

• Very Rare Iridescent Heteromorph: The Hoploscaphites conradi ammonite is a rare specimen, made even rarer by its iridescent sheen, making it a unique and highly sought-after piece.
• Distinct Corkscrew Shape: The ammonite exhibits distinct corkscrew-like coiling, which is a hallmark of heteromorphic ammonites.
• Well-Preserved Details: The ribbing, suture lines, and iridescent shell are well-preserved, giving the fossil a stunning appearance and adding to its scientific and aesthetic value.
• Scientific Significance: This ammonite helps to understand the marine ecosystems of the Late Cretaceous period and offers insights into the diversity of ammonites from this time.
• Perfect for Collectors: Its iridescent nature and unique features make it a prized addition to any fossil collection.

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
• Very rare and unique Hoploscaphites conradi ammonite with iridescent sheen
• Found in the Pierre Shales and Fox Hills Sandstone of South Dakota, from the Maastrichtian, Late Cretaceous period
• Distinct corkscrew shape, iridescent shell, and visible suture lines
• Ideal for collectors and those interested in Cretaceous ammonites and marine fossils

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