Description
A rare and eye-catching specimen of Pleuroceras spinatum, collected from the Upper Toarcian deposits of Eype, on the famous Jurassic Coast of Dorset, UK. This exceptional ammonite fossil was discovered on 19 July 2024 by our skilled fossil hunters Alister and Alison, and has been expertly cleaned, prepped, and treated by Alison.
Pleuroceras spinatum is renowned for its distinctive morphology, including a robust, disc-shaped shell with sharp radial ribs and prominent spines along the venter. This makes it one of the most easily recognised and sought-after ammonites from the Upper Toarcian stage of the Jurassic.
Fossil Type: Ammonite (extinct marine cephalopod)
Species: Pleuroceras spinatum
Geological Age: Lower Jurassic – Upper Toarcian Stage
Formation: Whitby Mudstone Formation (Upper part)
Depositional Environment: The specimen was formed in an offshore marine mudstone environment where low oxygen levels promoted exceptional fossil preservation. These fine-grained sediments allowed delicate features like ribs and spines to fossilise with impressive clarity.
Morphological Features:
- Flat, discoidal shell with open coiling
- Strong radial ribs and pronounced ventral spines
- Wide umbilicus and keel-bearing venter
Notable:
- Rare ammonite species with striking morphology
- Found and prepared by our in-house team with full provenance
- Perfect for collectors, educators, or display
- The photo shows the exact fossil specimen you will receive
Authenticity: All of our fossils are 100% genuine natural specimens and come with a Certificate of Authenticity. Please refer to the photo for sizing – the scale cube shown equals 1cm.
This Pleuroceras spinatum ammonite from the Jurassic coast at Eype is a beautifully preserved and scientifically valuable specimen with rare morphological features and verified field-to-display provenance.








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