Description
Available here is a genuine and well-preserved Calycoceras (Newboldiceras) fossil ammonite from the Lower Cenomanian Stage of the Cretaceous Period, approximately 100 to 96 million years ago. This specimen was discovered at Shapwick Grange, United Kingdom, a locality known for marine chalk and marl deposits. It originates from the prestigious Alice Purnell Collection, which features expertly curated and historically important fossil specimens.
Calycoceras, part of the family Acanthoceratidae, is an extinct genus of ammonite cephalopods. The Newboldiceras subgenus is noted for its distinctively ornamented shell with ribbing and tubercles. These features served not only as a protective adaptation but also assist paleontologists in biostratigraphic zonation of Cretaceous sediments.
This fossil specimen displays classic coiling, shell sculpture, and excellent detail. It is a highly desirable piece for collectors, researchers, or educational display.
Geological Context: The Lower Cenomanian marks the beginning of the Late Cretaceous, during which global sea levels were high and warm seas covered much of Europe. In the Shapwick Grange area, fossiliferous marine sediments preserve abundant invertebrate fauna, particularly ammonites and bivalves. These deposits represent a shallow, warm seaway that once covered southern Britain.
Key Details:
- Species: Calycoceras (Newboldiceras) (Fossil Ammonite)
- Fossil Type: Extinct marine ammonite (cephalopod)
- Age: Lower Cenomanian, Cretaceous (~100–96 million years ago)
- Location Found: Shapwick Grange, United Kingdom
- Provenance: From the Alice Purnell Collection
- Size: Please refer to the scale photo (1cm rule squares / cube included)
- Condition: Well-preserved with visible ribbing and natural features
- Authenticity: Includes a Certificate of Authenticity
- Photo: The actual specimen photographed is the one you will receive
Scientific & Collector Value: Specimens of Calycoceras (Newboldiceras) are important biostratigraphic markers in Cenomanian strata and are rarely found in such good condition from the UK. With provenance from the Alice Purnell Collection, this ammonite holds added historical and scientific significance.
All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.
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Add a rare and scientifically valuable ammonite to your collection with this exceptional Calycoceras (Newboldiceras) fossil from the Lower Cenomanian of Shapwick Grange, UK.
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