VERY RARE Heteromorph Ammonite Scaphites – Jeletzkytes brevis, Bearpaw Shale, Santonian, Cretaceous: Lake Howell, MONTANA, USA – COA

Description

This VERY RARE Heteromorph ammonite fossil, Scaphites – Jeletzkytes brevis, is a remarkable specimen from the Bearpaw Shale formation, dating back to the Santonian, Cretaceous period. It was discovered in Lake Howell, Montana, USA, a renowned fossil locality famous for preserving marine life from the Late Cretaceous. This specimen is a 100% genuine fossil and comes with a Certificate of Authenticity.

The Jeletzkytes brevis species is known for its heteromorphic shape, meaning it has an unusual, irregular coiling pattern that deviates from the typical spiral. This fossil is an exceptional find due to its rare preservation and distinctive morphological features.

Geology and Fossil Type

• Geological Stage: Santonian, Cretaceous
• Depositional Environment: Marine (The Bearpaw Shale was deposited in a marine environment during the Santonian period, providing the perfect conditions for the preservation of ammonites like Jeletzkytes brevis. This fossil was preserved in the ancient marine deposits of Lake Howell, Montana.)
• Family: Scaphitidae (The Jeletzkytes brevis belongs to the Scaphitidae family, a group of ammonites known for their heteromorphic shapes.)
• Superfamily: Ammonoidea
• Order: Ammonitida (As with all ammonites, this fossil belongs to the Cephalopoda class, closely related to modern squid, cuttlefish, and octopuses.)

Morphology Features

The Jeletzkytes brevis ammonite is a heteromorphic ammonite, which is known for its irregular, non-spiral coiling. This fossil has a distinct knobby appearance and a curved, corkscrew-like shape that sets it apart from typical ammonites. The surface of the fossil shows visible suture lines and distinct ribbing, which are valuable for scientific study.

Notable Features

• Very Rare Heteromorph Shape: The Jeletzkytes brevis ammonite is known for its unique irregular coiling. This heteromorphic shape makes it especially rare and desirable for collectors.
• Visible Suture Lines: The ammonite showcases visible suture lines, which provide important details about its evolutionary development.
• Corkscrew-like Shape: The unusual, curved shape of this fossil adds visual interest and sets it apart from more common ammonites.
• Pristine Preservation: The ammonite has been exceptionally well-preserved, with clear surface details, making it an excellent specimen for both display and scientific study.
• Historical and Scientific Value: This fossil offers a glimpse into Cretaceous marine ecosystems, providing valuable insights into the diversity of life during that period.

Size and Presentation

• Scale Cube: 1cm
• Full sizing is provided in the photos to give you an accurate representation of the fossil’s dimensions.
• Actual Fossil: The fossil pictured is the exact specimen you will receive.

Key Selling Points

• 100% Genuine Fossil
• Comes with a Certificate of Authenticity
• Rare Heteromorph Ammonite Jeletzkytes brevis from the Bearpaw Shale formation
• Found in Lake Howell, Montana, from the Santonian, Cretaceous period
• Features irregular coiling, visible suture lines, and knobby texture
• Ideal for collectors and those interested in Cretaceous ammonites and marine fossils

This Jeletzkytes brevis fossil from the Bearpaw Shale of Lake Howell, Montana, USA is a rare and highly collectible specimen from the Santonian, Cretaceous period. Its heteromorphic shape, visible suture lines, unique corkscrew-like appearance, and well-preserved surface details make it an extraordinary piece for any fossil collection.