Description
This beautifully preserved Cardioceras praecordatum fossil ammonite is a remarkable specimen from the Oxfordian Stage of the Upper Jurassic, unearthed in Switzerland. It hails from the esteemed Alice Purnell Collection, representing a rare and scientifically significant piece for collectors and enthusiasts alike.
- Species: Cardioceras praecordatum
- Geological Period: Jurassic
- Stage: Oxfordian (approx. 163.5 to 157.3 million years ago)
- Location: Switzerland
- Order: Ammonitida
- Family: Cardioceratidae
- Superfamily: Stephanoceratoidea
- Depositional Environment: Shallow marine continental shelf
- Morphology Features: Involute shell with strong, radial ribbing and compressed whorls
- Biozone (approx.): Cardioceras cordatum Zone (indicative of the early Oxfordian)
Cardioceras praecordatum is well-known for its elegant, sharply ribbed shell and its significance as a zonal index fossil in Upper Jurassic stratigraphy. This genus was a fast-swimming nektonic predator that thrived in open marine environments.
This specific specimen is from the private Alice Purnell Collection and has been carefully curated and preserved. A scale cube of 1cm is included in the photo for accurate sizing – please refer to the images for complete measurements.
- Discovery: Switzerland (exact date unknown; part of legacy collection)
- Preparation: Fully prepped to highlight ribbing and suture patterns without over-cleaning
All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.
An exceptional fossil for display, research, or as an investment-grade collectible, this ammonite is both a historical artefact and a natural work of art.






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