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Oxytropidoceras Ammonite Fossil | Cretaceous Texas | Duck Creek Formation | Upper Albian | Genuine Fossil with COA

Oxytropidoceras Ammonite Fossil | Cretaceous Texas | Duck Creek Formation | Upper Albian | Genuine Fossil with COA

£12.00

Available is a well-preserved Oxytropidoceras ammonite fossil, collected from the Duck Creek Formation, Spring Creek, Cooke County, Texas, USA. This specimen dates to the Upper Albian Stage of the Cretaceous Period, approximately 105 million years ago.

All of our fossils are 100% genuine and come with a Certificate of Authenticity. The photo shows the actual specimen you will receive. Cube in photo = 1cm. Full sizing available in image reference.

Geological & Scientific Overview:

  • Fossil Type: Ammonite (extinct marine cephalopod)
  • Genus: Oxytropidoceras
  • Family: Brancoceratidae
  • Superfamily: Acanthoceratoidea
  • Order: Ammonitida
  • Formation: Duck Creek Formation
  • Geological Stage: Upper Albian, Cretaceous
  • Location: Spring Creek, Cooke County, Texas, USA
  • Depositional Environment: Shallow marine shelf, Western Interior Seaway
  • Biozone Significance: Oxytropidoceras species are index fossils used to define Upper Albian ammonite zones across North America

Morphological Features:

  • Strongly compressed, high-whorled shell
  • Ventral keel prominent—a key diagnostic trait of the genus
  • Ribbing is well-defined, occasionally with tubercles on ventrolateral margins
  • Suture lines are complex and typically ammonitic in form
  • Involute coiling with minimal umbilical exposure

Scientific Importance: Oxytropidoceras is widely recognised for its role in Upper Albian biostratigraphy and its evolutionary linkage to later Cretaceous ammonite lineages. These fossils aid geologists in correlating marine sequences across the Gulf Coast, Europe, and North Africa.

Collector Appeal & Educational Value:

  • Excellent preservation with natural contrast
  • Great example for collectors or instructional use
  • Professionally cleaned and selected for visual and scientific quality

Why Buy From Us?

  • All fossils are 100% authentic and legally sourced
  • Supplied with a Certificate of Authenticity
  • The exact specimen photographed is the one you’ll receive

Own a piece of marine prehistory with this striking Oxytropidoceras ammonite fossil from Cretaceous Texas—ideal for collectors, educators, or fossil enthusiasts.

(Actual as seen)

Only 1 left in stock

SKU: UF3564 Category:

Description

Available is a well-preserved Oxytropidoceras ammonite fossil, collected from the Duck Creek Formation, Spring Creek, Cooke County, Texas, USA. This specimen dates to the Upper Albian Stage of the Cretaceous Period, approximately 105 million years ago.

All of our fossils are 100% genuine and come with a Certificate of Authenticity. The photo shows the actual specimen you will receive. Cube in photo = 1cm. Full sizing available in image reference.

Geological & Scientific Overview:

  • Fossil Type: Ammonite (extinct marine cephalopod)
  • Genus: Oxytropidoceras
  • Family: Brancoceratidae
  • Superfamily: Acanthoceratoidea
  • Order: Ammonitida
  • Formation: Duck Creek Formation
  • Geological Stage: Upper Albian, Cretaceous
  • Location: Spring Creek, Cooke County, Texas, USA
  • Depositional Environment: Shallow marine shelf, Western Interior Seaway
  • Biozone Significance: Oxytropidoceras species are index fossils used to define Upper Albian ammonite zones across North America

Morphological Features:

  • Strongly compressed, high-whorled shell
  • Ventral keel prominent—a key diagnostic trait of the genus
  • Ribbing is well-defined, occasionally with tubercles on ventrolateral margins
  • Suture lines are complex and typically ammonitic in form
  • Involute coiling with minimal umbilical exposure

Scientific Importance: Oxytropidoceras is widely recognised for its role in Upper Albian biostratigraphy and its evolutionary linkage to later Cretaceous ammonite lineages. These fossils aid geologists in correlating marine sequences across the Gulf Coast, Europe, and North Africa.

Collector Appeal & Educational Value:

  • Excellent preservation with natural contrast
  • Great example for collectors or instructional use
  • Professionally cleaned and selected for visual and scientific quality

Why Buy From Us?

  • All fossils are 100% authentic and legally sourced
  • Supplied with a Certificate of Authenticity
  • The exact specimen photographed is the one you’ll receive

Own a piece of marine prehistory with this striking Oxytropidoceras ammonite fossil from Cretaceous Texas—ideal for collectors, educators, or fossil enthusiasts.

Additional information

Era

Cretaceous
Origin

USA

Cretaceous Information

The Cretaceous Period (145–66 million years ago) was the final era of the Mesozoic, marked by the dominance of dinosaurs and the rise of flowering plants. It had a warm, greenhouse climate, with high sea levels that created vast shallow inland seas. Marine life flourished, including mosasaurs, ammonites, and rudist reefs, while the land was ruled by iconic dinosaurs like Tyrannosaurus rex, Triceratops, and Spinosaurus. Mammals and birds diversified, and insects thrived. The period ended with the mass extinction event, likely caused by an asteroid impact, wiping out the dinosaurs and paving the way for the rise of mammals in the Cenozoic.

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