Description
11″ Chalk Ammonite – Fagesia pachydiscoides
Formation: Chalk Formation
Geological Period: Lower Turonian, Cretaceous (approximately 93 to 89 million years ago)
Location: Folkestone, United Kingdom
Certificate of Authenticity Included
Scale Rule Squares / Cube = 1cm
Full sizing details in the photo
This Fagesia pachydiscoides chalk ammonite fossil from Folkestone, United Kingdom, is a magnificent example of Cretaceous marine life. It dates back to the Lower Turonian of the Cretaceous period, a time when the Earth was covered by shallow seas, teeming with diverse marine organisms. The Fagesia pachydiscoides ammonite species is one of the most iconic from this period, known for its distinctive spiral and well-preserved features.
Species and Morphology Information:
- Species: Fagesia pachydiscoides
- Geological Age: Lower Turonian, Cretaceous period (~93 to 89 million years ago)
- Depositional Environment: The Chalk Formation of Folkestone was laid down during the Cretaceous, when shallow seas covered large parts of Europe. The chalk is the result of fine particles of calcium carbonate from marine plankton. Fossils like Fagesia pachydiscoides were abundant in these environments.
- Morphology Features: The ammonite has a large, coiled shell, with a distinct ribbed and fluted surface. The shell is preserved in chalk, showing excellent details, making this specimen an excellent representation of the species. The spiraled structure exhibits the characteristic suture patterns and whorl development typical of Cretaceous ammonites.
- Notable Features: The fossil shows remarkable preservation of the chambered structure, a feature that offers insight into the ammonite’s life. The smooth, yet intricately detailed surface makes this fossil a standout piece for display.
- Family: Fagesiidae
- Superfamily: Ammonoidea
- Order: Ammonitida
- Biozone: The Lower Turonian ammonite biozone is a time when ammonites like Fagesia pachydiscoides were thriving in warm, shallow seas.
- Depositional Environment: This fossil formed in the shallow seas of the Cretaceous period, where marine plankton flourished. The fine calcite from the organisms contributed to the formation of chalk deposits, where ammonites and other marine creatures were preserved.
Size and Visuals:
The Fagesia pachydiscoides ammonite fossil measures 11 inches (as shown in the photos). The scale rule cube in the image represents 1cm, allowing you to assess the size and proportions of the fossil accurately.
Authenticity and Certification:
This Fagesia pachydiscoides ammonite fossil is 100% genuine and comes with a Certificate of Authenticity. The certificate confirms that the specimen was sourced from Folkestone, United Kingdom and dates back to the Lower Turonian, Cretaceous period.
Why Buy This Fossil:
- Genuine Fossil: Comes with a Certificate of Authenticity, verifying its Cretaceous age and UK origin.
- Rare and Collectible: A rare specimen from the Lower Turonian, Cretaceous of Folkestone, known for its excellent preservation and large size.
- Perfect for Display: This large ammonite fossil makes a striking display piece for any fossil collection, museum, or natural history collection.
- Educational Value: Offers insights into Cretaceous marine life, ammonoid morphology, and the paleogeography of the time.
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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