Description
Available here is a well-preserved Pleuroceras ammonite fossil, from the Marlstone Rock Formation, part of the Toarcian Stage of the Early Jurassic Period, dating back approximately 182 to 174 million years ago. This fossil was found near Gretton in Gloucestershire, United Kingdom, and forms part of the historic and highly respected Alice Purnell Collection, which includes some of the finest documented fossil specimens from Europe.
Pleuroceras is a genus of extinct ammonite cephalopods, most commonly recognised for their robust, planispiral shells adorned with strong radial ribs and sometimes spines or a keel along the venter. These features made them hydrodynamically stable swimmers in the shallow marine seas that covered parts of the UK during the Early Jurassic.
This particular specimen is preserved in matrix from the Marlstone Rock Formation, a well-known fossiliferous unit consisting of sandy ironstone and calcareous mudstone. The fossil displays excellent shell morphology, with clear ribbing and structural form, making it both a scientific reference specimen and a visual display piece.
Geological Context: The Marlstone Rock Formation is part of the Lias Group and dates to the Early Jurassic (Toarcian). It is rich in ammonites, bivalves, and other marine fauna, deposited in a warm, shallow sea that covered much of southern and central England during the time. The formation is a key biostratigraphic unit and is widely studied for its paleoecological significance.
Key Details:
- Species: Pleuroceras sp. (Fossil Ammonite)
- Fossil Type: Extinct marine cephalopod
- Age: Early Jurassic (Toarcian Stage, ~182–174 million years ago)
- Formation: Marlstone Rock Formation
- Location Found: Gretton, Gloucestershire, UK
- Provenance: From the Alice Purnell Collection
- Size: Refer to scale photo with 1cm rule squares / cube
- Condition: Excellent with detailed ribbing and shell structure visible
- Authenticity: 100% genuine, with a Certificate of Authenticity included
- Photo: The actual specimen shown is the one you will receive
Scientific & Collector Value: Pleuroceras is a biostratigraphically valuable genus, commonly used to date Toarcian-age marine rocks across Europe. Its classic ribbed form is instantly recognisable, and specimens from the Marlstone Rock Formation are especially sought after. The association with the Alice Purnell Collection enhances the fossil’s scientific and historical significance.
All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.
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Own a genuine piece of Early Jurassic marine life with this Pleuroceras ammonite fossil from Gretton, Gloucestershire, UK.
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