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.

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Giant 16" Tropaeum gigas Rare Ammonite Fossil Lower Aptian Cretaceous Isle of Wight UK
Giant 16" Tropaeum gigas Rare Ammonite Fossil Lower Aptian Cretaceous Isle of Wight UK - Image 2
Giant 16" Tropaeum gigas Rare Ammonite Fossil Lower Aptian Cretaceous Isle of Wight UK - Image 3
Giant 16" Tropaeum gigas Rare Ammonite Fossil Lower Aptian Cretaceous Isle of Wight UK - Image 4

Giant 16″ Tropaeum gigas Rare Ammonite Fossil Lower Aptian Cretaceous Isle of Wight UK

Original price was: £2,244.00.Current price is: £1,836.00.

This listing offers a rare and giant ammonite fossil from the Lower Callovian stage of the Jurassic period, identified as Tropaeaum gigas. Measuring an impressive 16 inches, this remarkable specimen originates from the Isle of Wight, a world-renowned fossil locality in the United Kingdom.

About TROPAEUM GIGAS

Tropaeaum gigas is an exceptionally rare ammonite species, distinguished by its massive size, thick shell, and pronounced ribbing. These ammonites thrived in the Jurassic seas approximately 165 million years ago, serving as a key indicator species for the Callovian stage. Fossils of this genus are highly sought after due to their impressive size and rarity in the fossil record.

Fossil Details:

  • Scientific Name: TROPAEUM GIGAS
  • Geological Age: Lower Callovian, Jurassic (~165 million years old)
  • Origin: Isle of Wight, United Kingdom
  • Size: GIANT 16 inches (full sizing details in photos)
  • Preservation: Well-defined ribbing and exceptional shell structure

Why This Fossil is Special:

Extremely rare and giant ammonite specimen from a famous UK fossil site

Distinct ribbing and impressive size make it an excellent display piece

Ideal for serious fossil collectors, museums, and educational displays

Comes from the prestigious Alice Purnell Collection – one of the largest ammonite collections in the world

100% Genuine Specimen with a Certificate of Authenticity

What You See is What You Get

This listing features the exact ammonite fossil shown in the photos—no stock images used.

Buy with Confidence:

  • Authenticity Guaranteed – Professionally identified and verified
  • Secure Packaging – Expertly packed for safe shipping
  • Fast & Reliable Shipping – Worldwide shipping available

This stunning TROPAEUM GIGAS ammonite fossil is an exceptional collector’s piece, offering a rare chance to own a truly massive and well-preserved specimen from the Jurassic seas of the Isle of Wight, UK. Don’t miss this unique opportunity!

(Actual as seen)

Includes a fully hand-signed Premium Certificate of Authenticity.

Only 1 left in stock

SKU: AF0311 Categories: ,

Description

Own an exceptionally rare giant Tropaeum gigas ammonite from the famous Lower Greensand deposits of the Isle of Wight, England. Measuring an impressive 16 inches, this magnificent specimen represents one of Britain’s most spectacular Cretaceous ammonites and would make a centrepiece in any serious fossil collection.

This is a genuine fossil collected from one of the UK’s most celebrated fossil localities and originates from the renowned Alice Purnell Collection, one of the world’s finest historic ammonite collections.

A Certificate of Authenticity is included with the fossil.

ABOUT TROPAEUM GIGAS

Tropaeum gigas is one of the largest and most impressive ammonites found within the Lower Greensand of southern England. Living during the Early Cretaceous, approximately 121–125 million years ago, it inhabited warm shallow seas that covered much of southern Britain.

This species belongs to the family Douvilleiceratidae, a group recognised for their robust shells, broad whorls and powerful ribbing. Mature specimens are exceptionally scarce, particularly examples reaching this size and level of preservation.

Fossil Details

  • Scientific Name: Tropaeum gigas
  • Family: Douvilleiceratidae
  • Geological Age: Lower Aptian (Early Cretaceous), approximately 121–125 million years old
  • Formation: Lower Greensand Group (Ferruginous Sands Formation)
  • Locality: Isle of Wight, United Kingdom
  • Size: Approximately 16 inches (see photographs for full measurements)
  • Authenticity: Genuine fossil with Certificate of Authenticity

Why This Specimen Is Special

  • Rare giant example of Tropaeum gigas
  • Exceptional display size of approximately 16 inches
  • Distinctive coarse ribbing and impressive shell preservation
  • From the world-famous Isle of Wight fossil locality
  • Ex Alice Purnell Collection
  • Ideal for advanced collectors, museums and educational collections
  • The exact specimen shown in the photographs

What You See Is What You Get

You will receive the exact fossil illustrated in the listing photographs. No stock images are used, allowing you to buy with complete confidence.

Buy With Confidence

  • Genuine natural fossil
  • Certificate of Authenticity included
  • Carefully packed for safe delivery
  • Worldwide shipping available
  • Exact specimen photographed

This outstanding giant Tropaeum gigas represents a rare opportunity to acquire an important British ammonite from the famous Lower Greensand deposits of the Isle of Wight. Large, well-preserved examples of this species are seldom offered for sale and make exceptional display and research specimens.

Additional information

Weight 0.1 g
Dimensions 10 × 10 × 10 cm

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