RARE 10″ Pachypictonia indicatorias Fossil Ammonite | Kimmeridgian Jurassic | Fairford UK | Authentic Specimen

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