Description
This listing features a RARE 10-inch fossil ammonite, Cunningtoniceras inerme, from the Cenomanian Stage of the Cretaceous Period, collected from the renowned chalk exposures of Glynde/Southerham, Sussex, United Kingdom. Sourced from the esteemed Alice Purnell Collection, this large and well-preserved specimen is both scientifically important and visually striking.
Geological Details:
- Locality: Glynde / Southerham, Sussex, United Kingdom
- Geological Period: Cretaceous
- Geological Stage: Middle Cenomanian (~96 to 94 million years ago)
- Depositional Environment: Shallow marine chalk sea with low-energy carbonate sedimentation
- Formation: Lower to Middle Chalk (Grey Chalk Subgroup)
Paleontological Context: Cunningtoniceras inerme belongs to the Acanthoceratidae Family, a group of ornate ammonites that flourished during the mid-Cretaceous. The species is noted for its reduced ornamentation and serves as a useful taxon for biostratigraphic correlation within the Acanthoceras rhotomagense Zone.
- Order: Ammonitida
- Superfamily: Acanthoceratoidea
- Family: Acanthoceratidae
- Genus: Cunningtoniceras
- Species: inerme
- Biozone: Acanthoceras rhotomagense Zone (Middle Cenomanian)
- Formally Described by: Klinger & Kennedy, 1979
Morphological Features:
- Broad, slightly compressed shell
- Weakly ribbed flanks with minimal tuberculation
- Rounded venter and relatively smooth appearance compared to other Cunningtoniceras species
- Light chalk preservation typical of southern England’s Grey Chalk Subgroup
Notable Characteristics:
- Rare large-sized example of a usually more modest ammonite species
- Classic chalk locality with important Cretaceous stratigraphy
- From the scientifically curated Alice Purnell Collection
Authenticity & Presentation:
- 100% genuine fossil, not a cast or reconstruction
- Includes a Certificate of Authenticity
- The photo shows the exact specimen you will receive
- Scale cube = 1cm for accurate size reference
Additional Notes: This 10-inch Cunningtoniceras inerme specimen combines rarity, provenance, and size to offer a true collector’s ammonite. Ideal for educational, scientific, or display purposes, it’s a genuine slice of Britain’s Cretaceous marine heritage.
All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.
Reviews
There are no reviews yet.