Description
This listing features a genuine Mortoniceras wintoni ammonite fossil from the Duck Creek Formation, dated to the Upper Albian Stage of the Cretaceous period (approximately 105 million years ago). It was discovered in Spring Creek, Cooke County, Texas, USA, and comes with a Certificate of Authenticity to guarantee its provenance and legitimacy.
Geological and Palaeontological Details:
- Fossil Type: Ammonite (extinct marine cephalopod)
- Species: Mortoniceras wintoni
- Family: Brancoceratidae
- Superfamily: Acanthoceratoidea
- Order: Ammonitida
- Geological Formation: Duck Creek Formation
- Geological Age: Upper Albian Stage, Cretaceous Period
- Depositional Environment: Marine shelf, representing a warm shallow sea environment that existed in the Western Interior Seaway
- Location: Spring Creek, Cooke County, Texas, USA
Morphological Features: This ammonite exhibits typical features of the Mortoniceras genus, including:
- Ribbed, involute shell with strong tubercles (nodes)
- Moderate to large size, with well-defined growth lines and ornamentation
- The preservation quality in this specimen is excellent, with visible suture lines and matrix contrast that highlights its ancient marine origin
Scientific and Collector Interest: Mortoniceras is a genus prized for its detailed ornamentation and its biostratigraphic value in Upper Albian stratigraphy. M. wintoni is named after the Winton formation and provides important insights into ammonite evolution and the paleobiogeography of the Western Interior Seaway. These fossils are often used in scientific correlation and regional zonation.
Display and Photography:
- This is the exact specimen you will receive (see photos)
- Cube scale = 1cm for accurate sizing
- Ideal for educational collections, fossil enthusiasts, or unique gift display
Why Buy From Us?
- All of our fossils are 100% genuine specimens
- Each comes with a Certificate of Authenticity
- Carefully sourced, cleaned, and handled with professional care
- Responsibly collected with respect for scientific and legal guidelines
Add a stunning and scientifically significant piece to your collection today with this remarkable Mortoniceras wintoni ammonite fossil.






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