Rare Pseudoschloenbachia umbulazi Fossil Ammonite Santonian Cretaceous USA with COA
£ 24.00
RARE PSEUDOSCHLOENBACHIA UMBULAZI AMMONITE FOSSIL FROM THE USAOffered here is a rare Pseudoschloenbachia umbulazi fossil ammonite from the
Santonian stage of the Late Cretaceous, approximately 86–83 million years ago. This remarkable specimen originates from the USA, where ammonites thrived in the warm, shallow seas that dominated North America during the Late Cretaceous. The fossil has been carefully selected for its preservation, and the photographs show the exact piece you will receive. A 1 cm scale cube is included in the images for accurate sizing. GEOLOGICAL BACKGROUND – THE SANTONIAN STAGEThe Santonian stage is a significant interval of the Late Cretaceous, following the Coniacian and preceding the Campanian. During this time, sea levels were high, and vast epicontinental seas covered much of North America, creating an environment ideal for ammonites, bivalves, marine reptiles, and other organisms. Sediments deposited in these seas often consisted of chalks, marls, and limestones, preserving a detailed fossil record.Ammonites such as Pseudoschloenbachia umbulazi provide valuable insight into these ecosystems, representing an important lineage within the superfamily Acanthoceratoidea, known for its richly ornamented shells. SPECIES OVERVIEW – PSEUDOSCHLOENBACHIA UMBULAZIThe genus Pseudoschloenbachia is part of the family Schloenbachiidae within the order Ammonitida. This group is closely related to Schloenbachia, but it is distinguished by subtle differences in shell form and ribbing.Notable characteristics of P. umbulazi include:
• Shell Morphology: Moderately involute, with compressed whorls and a strong keel along the venter.
• Ribbing Pattern: Prominent, sharp ribs that may bifurcate towards the outer shell, giving the ammonite an ornate appearance.
• Ornamentation: Occasional tubercles or nodal features along the flanks, typical of Schloenbachiidae ammonites.
• Suture Lines: Complex lobes and saddles, a diagnostic trait of advanced Late Cretaceous ammonites.These features not only make the ammonite scientifically significant but also enhance its visual appeal for collectors and display purposes. PALEONTOLOGICAL SIGNIFICANCEAs an ammonite from the Acanthoceratoidea lineage, Pseudoschloenbachia umbulazi holds important stratigraphic and evolutionary significance. Ammonites of this group serve as biostratigraphic markers, helping geologists date and correlate Late Cretaceous deposits across continents. The species’ distribution in North America adds to the global picture of ammonite dispersal and adaptation during this dynamic geological period. COLLECTOR’S VALUE AND DISPLAY POTENTIALThis fossil is an outstanding addition to any natural history collection. Its pronounced ribbing, elegant coiling, and scientific importance ensure that it will be admired not only as a decorative display piece but also as a valuable specimen for academic and educational purposes. Fossils of P. umbulazi are considered rare finds, especially from American deposits, making this a desirable acquisition for advanced collectors.
• Species: Pseudoschloenbachia umbulazi
• Family: Schloenbachiidae
• Superfamily: Acanthoceratoidea
• Order: Ammonitida
• Age: Santonian, Late Cretaceous (~86–83 million years ago)
• Provenance: USA
• Authenticity: Guaranteed, with a Certificate of Authenticity AUTHENTICITY AND GUARANTEEEvery fossil we offer is a 100% genuine specimen. This ammonite has been carefully chosen for quality and comes with a Certificate of Authenticity. The specimen is shown clearly in the photographs provided, and the piece you see is the exact fossil you will receive. This ensures complete transparency, allowing collectors to purchase with confidence.This Pseudoschloenbachia umbulazi ammonite fossil is a rare opportunity to acquire a scientifically and historically significant specimen from the Late Cretaceous seas of North America.
Santonian stage of the Late Cretaceous, approximately 86–83 million years ago. This remarkable specimen originates from the USA, where ammonites thrived in the warm, shallow seas that dominated North America during the Late Cretaceous. The fossil has been carefully selected for its preservation, and the photographs show the exact piece you will receive. A 1 cm scale cube is included in the images for accurate sizing. GEOLOGICAL BACKGROUND – THE SANTONIAN STAGEThe Santonian stage is a significant interval of the Late Cretaceous, following the Coniacian and preceding the Campanian. During this time, sea levels were high, and vast epicontinental seas covered much of North America, creating an environment ideal for ammonites, bivalves, marine reptiles, and other organisms. Sediments deposited in these seas often consisted of chalks, marls, and limestones, preserving a detailed fossil record.Ammonites such as Pseudoschloenbachia umbulazi provide valuable insight into these ecosystems, representing an important lineage within the superfamily Acanthoceratoidea, known for its richly ornamented shells. SPECIES OVERVIEW – PSEUDOSCHLOENBACHIA UMBULAZIThe genus Pseudoschloenbachia is part of the family Schloenbachiidae within the order Ammonitida. This group is closely related to Schloenbachia, but it is distinguished by subtle differences in shell form and ribbing.Notable characteristics of P. umbulazi include:
• Shell Morphology: Moderately involute, with compressed whorls and a strong keel along the venter.
• Ribbing Pattern: Prominent, sharp ribs that may bifurcate towards the outer shell, giving the ammonite an ornate appearance.
• Ornamentation: Occasional tubercles or nodal features along the flanks, typical of Schloenbachiidae ammonites.
• Suture Lines: Complex lobes and saddles, a diagnostic trait of advanced Late Cretaceous ammonites.These features not only make the ammonite scientifically significant but also enhance its visual appeal for collectors and display purposes. PALEONTOLOGICAL SIGNIFICANCEAs an ammonite from the Acanthoceratoidea lineage, Pseudoschloenbachia umbulazi holds important stratigraphic and evolutionary significance. Ammonites of this group serve as biostratigraphic markers, helping geologists date and correlate Late Cretaceous deposits across continents. The species’ distribution in North America adds to the global picture of ammonite dispersal and adaptation during this dynamic geological period. COLLECTOR’S VALUE AND DISPLAY POTENTIALThis fossil is an outstanding addition to any natural history collection. Its pronounced ribbing, elegant coiling, and scientific importance ensure that it will be admired not only as a decorative display piece but also as a valuable specimen for academic and educational purposes. Fossils of P. umbulazi are considered rare finds, especially from American deposits, making this a desirable acquisition for advanced collectors.
• Species: Pseudoschloenbachia umbulazi
• Family: Schloenbachiidae
• Superfamily: Acanthoceratoidea
• Order: Ammonitida
• Age: Santonian, Late Cretaceous (~86–83 million years ago)
• Provenance: USA
• Authenticity: Guaranteed, with a Certificate of Authenticity AUTHENTICITY AND GUARANTEEEvery fossil we offer is a 100% genuine specimen. This ammonite has been carefully chosen for quality and comes with a Certificate of Authenticity. The specimen is shown clearly in the photographs provided, and the piece you see is the exact fossil you will receive. This ensures complete transparency, allowing collectors to purchase with confidence.This Pseudoschloenbachia umbulazi ammonite fossil is a rare opportunity to acquire a scientifically and historically significant specimen from the Late Cretaceous seas of North America.
Other Products
