Description
This listing features a beautifully preserved Mortoniceras ammonite fossil, collected from the Duck Creek Formation, dating to the Upper Albian Stage of the Cretaceous period. This fossil was unearthed in Spring Creek, Cooke County, Texas, USA – a classic site known for yielding well-preserved marine fossils from the mid-Cretaceous.
The genus Mortoniceras is known for its strong ribbing and prominent tuberculate ornamentation. These ammonites were adapted to life in shallow marine settings and are frequently used as biostratigraphic markers for the Albian stage.
Geological & Scientific Details:
- Genus: Mortoniceras
- Family: Brancoceratidae
- Superfamily: Acanthoceratoidea
- Order: Ammonitida
- Geological Period: Cretaceous
- Geological Stage: Upper Albian
- Formation: Duck Creek Formation
- Location: Spring Creek, Cooke County, Texas, USA
- Depositional Environment: Shallow marine – Western Interior Seaway
- Morphology Features: Evolute shell with strong ribbing and ventrolateral tubercles; often forms distinctive spiral ridges
Why This Specimen Stands Out:
- Excellent example of a Mortoniceras ammonite fossil
- Prominent ribbing and defined tubercles
- Sourced from a key fossil-rich locality in Texas
- Ideal for collectors, educators, or display
- Photo shows the actual fossil you will receive
- Includes Certificate of Authenticity
Scale Reference: Scale Rule Squares / Cube = 1cm – See photo for exact sizing.
Shipping & Packaging:
- Professionally packaged for safe worldwide delivery
- Tracked international shipping available
This ammonite represents an important component of the Upper Albian fossil record and showcases the diversity and ornamentation of mid-Cretaceous ammonoids.
All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.
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