Description
Presenting an exceptional Mortoniceras drakeoceras maximum ammonite fossil, discovered in the Duck Creek Formation, near Spring Creek, Cooke County, Texas, USA. This fossil dates to the Upper Albian Stage of the Cretaceous Period (~105 million years ago) and is a scientifically significant and highly collectible marine specimen.
Every fossil we sell is 100% genuine and is accompanied by a Certificate of Authenticity. The exact specimen shown in the photo is the one you will receive. Please refer to the image for full sizing details; the cube scale represents 1cm per square.
Geological & Taxonomic Information:
- Fossil Type: Ammonite (extinct marine mollusc)
- Species: Mortoniceras drakeoceras maximum
- Family: Brancoceratidae
- Superfamily: Acanthoceratoidea
- Order: Ammonitida
- Geological Formation: Duck Creek Formation
- Geological Stage: Upper Albian (Cretaceous Period)
- Biozone: Upper Albian ammonite zone (Mortoniceras genus often serves as a biostratigraphic marker)
- Depositional Environment: Marine shelf environment, representative of the shallow Western Interior Seaway that once covered much of North America
Morphology & Distinctive Features:
- Characterised by a strongly ornamented shell with dense ribbing and distinct tubercles (nodes) along the flanks and ventrolateral shoulders
- Coiled, planispiral form with moderate involution
- Large, robust shell typical of the “maximum” form, with deeply incised suture lines visible in areas of preservation
Scientific Context: The genus Mortoniceras is crucial in biostratigraphy and was formally named by Meek in 1876. The variety drakeoceras maximum represents one of the more strongly ornamented and large-bodied forms within the genus. These fossils are used extensively in correlating Upper Albian marine strata across North America and Europe.
Collector & Display Appeal:
- Aesthetic contrast between fossil and matrix
- Excellent preservation makes this piece perfect for framing, study, or teaching
- Sourced responsibly and professionally prepared for display
Why Buy From Us?
- Each item is a 100% genuine fossil
- Comes with a Certificate of Authenticity
- Carefully selected, cleaned, and preserved by specialists
Add a rare and scientifically important ammonite to your collection with this Mortoniceras drakeoceras maximum fossil from Texas. A striking piece of Earth’s deep history, ideal for collectors, educators, or natural history enthusiasts.
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