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.

Rare pseudocadoceras & stenocadoceras multi-ammonite fossil block – kellaways clay, lower callovian, jurassic, oxon, uk – coa

Rare pseudocadoceras & stenocadoceras multi-ammonite fossil block – kellaways clay, lower callovian, jurassic, oxon, uk – coa - Image 2

Rare pseudocadoceras & stenocadoceras multi-ammonite fossil block – kellaways clay, lower callovian, jurassic, oxon, uk – coa - Image 3

Rare pseudocadoceras & stenocadoceras multi-ammonite fossil block – kellaways clay, lower callovian, jurassic, oxon, uk – coa

Name: Rare pseudocadoceras &amp; stenocadoceras multi-ammonite fossil block – kellaways clay, lower callovian, jurassic, oxon, uk – coa
Brand: SilverGeo
SKU: AF0571
Availability: OutOfStock

£36.00

This is a rare multi-ammonite fossil block featuring Pseudocadoceras sp. and Stenocadoceras sp., dating to the Lower Callovian stage of the Middle Jurassic (~166 million years ago), discovered in Oxon, United Kingdom.

Ammonites like Pseudocadoceras and Stenocadoceras were marine cephalopods related to modern squid and nautiluses, known for their elegant coiled shells and intricate suture patterns. This specimen provides an exceptional insight into Jurassic marine ecosystems, with multiple ammonites preserved together in their original matrix, creating a museum-quality display piece.

The Kellaways Clay Formation, where this specimen was found, is an important Middle Jurassic deposit in the UK, yielding some of the finest ammonite fossils. Fossils from this formation illustrate the diverse marine life that once thrived in ancient Jurassic seas.

This multi-fossil block is an excellent addition to any collection, perfect for collectors, researchers, and enthusiasts of British Jurassic paleontology.

Geological Information:

Formation: Kellaways Clay Formation
Stage: Lower Callovian, Middle Jurassic (~166 million years old)
Location: Oxon, United Kingdom
Depositional Environment: Shallow marine seabed with fine-grained sedimentation

Fossil Characteristics:

Multi-ammonite block featuring both Pseudocadoceras sp. & Stenocadoceras sp.
Distinctive shell morphology and well-preserved ribbing
Excellent multi-species display fossil from the Kellaways Clay Formation
Highly collectible and scientifically significant Jurassic ammonite assemblage

Key Features:

Authentic Pseudocadoceras & Stenocadoceras ammonite fossil block
Rare Middle Jurassic specimen from Oxon, UK
From the Alice Purnell Collection
100% genuine specimen with Certificate of Authenticity

Scale Rule / Cube = 1cm – Please refer to the photos for accurate sizing.

All fossils are securely packaged for worldwide shipping.

(Actual as seen)

Out of stock

SKU: AF0571 Category: Alice Purnell

Description

This multi-fossil block is an excellent addition to any collection, perfect for collectors, researchers, and enthusiasts of British Jurassic paleontology.

Geological Information:

Formation: Kellaways Clay Formation
Stage: Lower Callovian, Middle Jurassic (~166 million years old)
Location: Oxon, United Kingdom
Depositional Environment: Shallow marine seabed with fine-grained sedimentation

Fossil Characteristics:

Multi-ammonite block featuring both Pseudocadoceras sp. & Stenocadoceras sp.
Distinctive shell morphology and well-preserved ribbing
Excellent multi-species display fossil from the Kellaways Clay Formation
Highly collectible and scientifically significant Jurassic ammonite assemblage

Key Features:

Authentic Pseudocadoceras & Stenocadoceras ammonite fossil block
Rare Middle Jurassic specimen from Oxon, UK
From the Alice Purnell Collection
100% genuine specimen with Certificate of Authenticity

Scale Rule / Cube = 1cm – Please refer to the photos for accurate sizing.

All fossils are securely packaged for worldwide shipping.

Additional information

Weight	0.1 g
Dimensions	10 × 10 × 10 cm
Era	Jurassic
Origin	United Kingdom

Jurassic Information

The Jurassic Period (201–145 million years ago) was the golden age of dinosaurs, with iconic species like Brachiosaurus, Stegosaurus, and Allosaurus dominating the land. It was a time of warm, humid climates, with high sea levels that created vast shallow seas, supporting abundant marine reptiles, ammonites, and early coral reefs. The first birds, such as Archaeopteryx, evolved from small theropod dinosaurs, while early mammals remained small and nocturnal. Lush forests of cycads, conifers, and ferns covered the land, providing food for giant herbivores. The breakup of the supercontinent Pangaea accelerated, shaping Earth's geography and setting the stage for the diverse ecosystems of the Cretaceous.

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Rare pseudocadoceras & stenocadoceras multi-ammonite fossil block – kellaways clay, lower callovian, jurassic, oxon, uk – coa

Geological Information:

Fossil Characteristics:

Key Features:

Description

Geological Information:

Fossil Characteristics:

Key Features:

Additional information

Jurassic Information

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