Description
Fossil Chalk Ammonite – Calycoceras (Newboldiceras) vergonsense i
Geological Formation: Chalk Formation
Geological Period: Cenomanian, Cretaceous (approximately 100 to 94 million years ago)
Location: Glynde, United Kingdom
Certificate of Authenticity Included
Scale Rule Squares / Cube = 1cm
Full sizing details in the photo
This Calycoceras (Newboldiceras) vergonsense i chalk ammonite fossil from Glynde, United Kingdom, is an excellent example of Cretaceous marine life. Dating back to the Cenomanian of the Cretaceous period, it was once part of the warm shallow seas that covered much of the planet. The Calycoceras genus, now classified under Newboldiceras, is known for its distinctive spiral shells and fine preservation.
Species and Morphology Information:
- Species: Calycoceras (Newboldiceras) vergonsense i
- Geological Age: Cenomanian, Cretaceous period (~100 to 94 million years ago)
- Depositional Environment: The Chalk Formation at Glynde was formed in the shallow seas of the Cretaceous period. The calcium carbonate deposits in this environment provided ideal conditions for fossil preservation.
- Morphology Features: The Calycoceras ammonite has a tightly coiled shell with well-defined sutures. This specimen showcases the distinctive spiral structure and chambered interior typical of this genus.
- Notable Features: This ammonite fossil displays excellent preservation, with clear whorls, sutural patterns, and a smooth, spiral shell. The complete specimen makes this a highly desirable piece for any collector or researcher.
- Family: Newboldiceras
- Superfamily: Ammonoidea
- Order: Ammonitida
- Biozone: The Cenomanian biozone is defined by a variety of ammonoid species, including Calycoceras, which thrived in the warm, shallow seas of the Cretaceous.
- Depositional Environment: The fossil was preserved in the Cretaceous shallow marine environment of Glynde, which provided an ideal environment for fossilization, particularly for ammonoids like Calycoceras.
Size and Visuals:
This Calycoceras ammonite fossil measures approximately 5.5 inches (as shown in the photos). The scale rule in the image represents 1cm, and full-size details of the specimen are provided in the photos.
Authenticity and Certification:
This Calycoceras (Newboldiceras) vergonsense i chalk ammonite fossil is 100% genuine and comes with a Certificate of Authenticity. The certificate confirms that this specimen was sourced from Glynde, United Kingdom, and dates back to the Cenomanian of the Cretaceous period.
Why Buy This Fossil:
- Genuine Fossil: Comes with a Certificate of Authenticity confirming its Cretaceous age and UK origin.
- Rare and Collectible: This ammonite fossil is a well-preserved specimen from the Cenomanian Cretaceous period of Glynde, UK.
- Perfect for Display: This fossil ammonite is an excellent display piece for any fossil collection, museum, or natural history collection.
- Educational Value: Provides valuable insight into Cretaceous marine life, ammonoid morphology, and the paleogeography of the period.
Note: The photo shown is of the actual specimen you will receive. The scale cube in the image represents 1cm, and full-size details are provided through the photos.






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