Description
An exceptionally rare and large 10-inch Fossil Ammonite: Pachypictonia indicatorias from the Kimmeridgian Stage of the Upper Jurassic, discovered in the classic fossil-bearing strata near Fairford, Gloucestershire, United Kingdom. This stunning and substantial specimen is a museum-grade example of a rarely offered British ammonite, known for its distinctive form and scientific significance.
The ammonite shown in the images is the exact specimen you will receive. A 1cm scale rule cube is included in the photos for accurate size reference. Please review the images for full dimensions and preservation.
Geological & Palaeontological Information:
- Fossil Type: Ammonite
- Species: Pachypictonia indicatorias (originally described by d’Orbigny)
- Geological Period: Jurassic
- Stage: Kimmeridgian (~157 to 152 million years ago)
- Location: Fairford, Gloucestershire, England, UK
- Depositional Environment: Offshore marine mudstones and silty clays deposited in a shallow epicontinental sea
- Order: Ammonitida
- Superfamily: Perisphinctoidea
- Family: Pictoniidae
- Morphological Features:
- Involute, thick-shelled form with relatively smooth inner whorls and stronger ribbing on outer flanks
- Typically compressed with a rounded venter and widely spaced primary ribs
- Strong keel and occasional tuberculate ornamentation may be present
Notable Points:
- Pachypictonia indicatorias is rarely encountered on the market, particularly in this size and condition
- The genus is often used in biozonation for the Upper Kimmeridgian, offering stratigraphic value as well as aesthetic appeal
- Fossils from the Fairford area are well known for their preservation in fine-grained Jurassic marine sediments
Why Add This Fossil to Your Collection?
- Rare large ammonite from a UK Upper Jurassic formation
- Ideal for collectors, educators, and display
- Supplied with a Certificate of Authenticity
- 100% natural and ethically sourced
- A scientifically significant and visually impressive specimen
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