Description
Offered here is an authentic specimen of Parkinsonia pachypleura, a fossil ammonite from the Bathonian Stage of the Middle Jurassic, dating back approximately 168 to 166 million years ago. This particular fossil was discovered near Burford, in the Cotswolds region of the United Kingdom, and forms part of the esteemed Alice Purnell Collection, known for scientifically significant and meticulously curated specimens.
Parkinsonia pachypleura is a species within the Parkinsoniidae family, characterised by its moderately evolute shell, prominent ribbing, and strong whorl ornamentation. These ammonites were nektonic carnivores, free-swimming in warm shallow seas that once covered much of Britain during the Jurassic period.
This specimen is an excellent example of the species, showcasing classic coiling and ribbing. It’s a highly desirable piece for both display and study.
Geological Context: The Bathonian Stage represents a time of widespread marine deposition in the Middle Jurassic. The sedimentary rocks of the Cotswolds, especially around Burford, are rich in fossil-bearing limestone and marl. These deposits were formed in a shallow, warm sea teeming with life, including ammonites, belemnites, marine reptiles, and numerous bivalve species. Ammonites like Parkinsonia pachypleura are key index fossils used by paleontologists to date and correlate Jurassic rock layers.
Key Details:
- Species: Parkinsonia pachypleura (Fossil Ammonite)
- Fossil Type: Extinct marine cephalopod
- Age: Bathonian, Middle Jurassic (~168–166 million years ago)
- Location Found: Burford, Cotswolds, United Kingdom
- Provenance: From the Alice Purnell Collection
- Size: See photo with 1cm scale cube for exact dimensions
- Condition: Very well-preserved with visible ribbing and form
- Authenticity: Comes with a Certificate of Authenticity
- Photo: The exact fossil specimen shown is the one you will receive
Scientific & Collector Value: Parkinsonia pachypleura is a classic ammonite of the Bathonian Stage and an important index fossil. Its detailed ornamentation and well-documented provenance from the Alice Purnell Collection make it an exceptional find for collectors, educators, or researchers interested in Jurassic paleontology.
All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.
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Bring the Jurassic seas of the Cotswolds to your collection with this beautifully preserved Parkinsonia pachypleura ammonite fossil.







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