Fossils for Sale - High-quality BRITISH and WORLDWIDE Fossils. An impressive selection of fossils, including Ammonites, Trilobites, Belemnites, Fossil Fish, Fossil Shark Teeth, Fossilised Insects in Amber, Dinosaurs, and Reptiles. UK Fossils was formed in 1988 and collects and preps our own fossils in the heart of the Jurassic Coast, collecting fossils from Lyme Regis, Charmouth and Somerset. Our passion for fossils is reflected in our carefully curated collection, which includes some of the rarest and most unique specimens available.

FREE UK DELIVERY - Save up to 60%

Sale!
Rare 10.5 Inch Proplanulites Koenigi Fossil Ammonite Lower Callovian Jurassic UK
Rare 10.5 Inch Proplanulites Koenigi Fossil Ammonite Lower Callovian Jurassic UK - Image 2
Rare 10.5 Inch Proplanulites Koenigi Fossil Ammonite Lower Callovian Jurassic UK - Image 3

Rare 10.5 Inch Proplanulites Koenigi Fossil Ammonite Lower Callovian Jurassic UK

Original price was: £300.00.Current price is: £240.00.

This is a truly RARE 10.5-inch Proplanulites koenegi fossil ammonite, collected from Ashton Keynes, Wiltshire, UK, and dating back to the Lower Callovian stage of the Jurassic period, approximately 165 to 161 million years ago. This exceptional specimen is part of the prestigious Alice Purnell Collection, and is a striking addition to any advanced palaeontological or natural history collection.

The Proplanulites genus is part of the Ammonitida order, known for their smooth, planispiral shells. This particular specimen, Proplanulites koenegi, is a large and remarkably well-preserved example, showcasing the gentle whorls and subtle ornamentation characteristic of the species. Its size and preservation make it a true collector’s piece.

Ammonites were extinct marine molluscs closely related to modern-day squid and octopuses. They thrived in Earth’s oceans from the Devonian through to the end of the Cretaceous period and are among the most iconic and widely recognised fossils due to their elegant spiral form. Their shells, often preserved in fine marine sediments, provide critical information about Jurassic marine environments and biostratigraphy.

This fossil was discovered in sedimentary rocks laid down during the Callovian, a stage known for rich marine fauna. The region of Ashton Keynes in Wiltshire is particularly noted for its Jurassic exposures, offering rare opportunities to recover such magnificent and sizeable specimens.

 

Item Details:

  • Specimen: Proplanulites koenegi (Ammonite)
  • Age: Lower Callovian Stage, Jurassic Period (c. 165–161 million years ago)
  • Location: Ashton Keynes, Wiltshire, United Kingdom
  • Size: 10.5 inches
  • Collection: From the Alice Purnell Collection
  • Scale Reference: Scale Rule/Cube = 1cm (please see photo)
  • Certificate of Authenticity: Included

 

ACTUAL AS SEEN: You will receive the exact specimen shown in the photos. Each fossil is individually hand-selected and photographed, ensuring accuracy and authenticity.

Measurements are provided to the best of our ability, though natural fossil irregularities may cause slight variances. Colours may appear slightly different depending on lighting or screen display settings.

Please note: Some fossils may be gently propped for photographic purposes only.

Once this specific specimen is sold, the listing will be updated with a new individual item and its own photos and sizing. For your own reference, we recommend saving or screenshotting the listing image at time of purchase.

 

Own a genuine piece of Britain’s Jurassic heritage with this rare and impressive 10.5″ Proplanulites koenegi ammonite—an extraordinary fossil that beautifully captures the ancient marine life of the Callovian seas.

(Actual as seen)

Includes a fully hand-signed Premium Certificate of Authenticity.

Only 1 left in stock

SKU: AF1100 Categories: ,

Description

Proplanulites Koenigi Fossil Ammonite

This rare 10.5-inch Proplanulites koenigi fossil ammonite is identified as Lower Callovian and Jurassic. Its substantial size and clearly stated paleontological identification make it an appealing choice for fossil collectors, Jurassic geology enthusiasts, educational displays and natural history interiors. The specimen is associated with Ashton Keynes, Wiltshire, UK, and comes from the Alice Purnell Collection.

Geological Identification

Proplanulites koenigi is an ammonite identification from the Jurassic Period. The Lower Callovian is a recognised interval within the Middle Jurassic, placing this fossil within an important stage of Jurassic geological history. Ammonites were extinct marine cephalopods with coiled shells, and their fossils are widely valued for the way they connect natural history, palaeontology and the study of ancient marine environments.

The combination of the Proplanulites koenigi identification, Lower Callovian age designation and Jurassic classification gives this specimen strong relevance for collectors who focus on ammonites, Jurassic fossils or scientifically identified palaeontological material. It can also serve as a conversation piece in a fossil cabinet, study, office, library or geology-themed display.

Collection Details

From the Alice Purnell Collection

This collection association adds an important point of interest for collectors seeking a fossil with a named collection connection. The specimen is associated with Ashton Keynes, Wiltshire, UK, and is presented as a genuine fossil specimen with supporting documentation.

Certificate of Authenticity

This Fossil is a genuine specimen and Includes a fully hand-signed Premium Certificate of Authenticity.

The included certificate wording provides documentation for the specimen and makes the piece especially suitable for collectors who value authentication alongside the fossil itself. Please retain the certificate with the specimen for future reference or display.

Photographs and Sizing

The photograph shows the actual specimen you will receive.

Full sizing is shown in the photographs.

The photographs should be used together with the stated 10.5-inch size when assessing the specimen for display, storage or collection planning. Viewing the actual specimen images also allows collectors to appreciate its overall scale and presentation before purchase.

Collector Display and Gift Appeal

This Proplanulites koenigi ammonite is suited to fossil collections, Jurassic displays, palaeontology study areas and educational settings. Its named identification and Lower Callovian Jurassic classification provide useful talking points for anyone interested in ammonites and the geological history of the Jurassic Period. It can be displayed as a standalone natural history object or alongside other ammonites and Jurassic fossils to create a focused geological collection.

Reviews

There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

Related products