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Cadoceras compressus m Ammonite Fossil Block with Bivalve Fossils Jurassic Oxon | Rare Kellaways Clay Lower Callovian

£18.00

This is a rare and well-preserved fossil block featuring the ammonite Cadoceras compressus along with associated bivalve fossils, dating to the Lower Callovian stage of the Middle Jurassic (~166 million years ago), discovered in Oxon, United Kingdom.

Cadoceras compressus belongs to the Cardioceratidae family and is characterized by its strongly ribbed, involute shell and deep, well-defined whorls. It was a fast-swimming marine predator that thrived in Jurassic seas. The presence of bivalves in this fossil block suggests that it was preserved in a marine environment with diverse invertebrate life.

The Kellaways Clay Formation is an important Jurassic deposit in the UK, known for its exceptionally preserved ammonites, bivalves, and other marine fossils, offering insight into the prehistoric ecosystem of the Middle Jurassic seas.

This multi-fossil block is a highly collectible specimen, perfect for paleontology enthusiasts, fossil collectors, and researchers studying Jurassic marine life.

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:

  • Cadoceras compressus ammonite with well-defined ribbing and whorls
  • Associated bivalve fossils provide an insight into Jurassic marine ecosystems
  • Exceptional multi-fossil block from the Kellaways Clay Formation
  • Highly sought-after by collectors and researchers

Key Features:

  • Authentic Cadoceras compressus ammonite fossil block with bivalves
  • 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)

Only 1 left in stock

Description

RARE CADOCERAS COMPRESSUS AMMONITE FOSSIL BLOCK

This distinctive fossil specimen features a Cadoceras compressus m ammonite block with bivalve fossils. It is identified with the Kellaways Clay, Lower Callovian, Jurassic, and is from Oxon, United Kingdom. The combination of an ammonite fossil and associated bivalve fossils makes this an appealing geological display piece for collectors interested in Jurassic palaeontology, ammonites and marine fossil assemblages.

IDENTIFICATION AND GEOLOGICAL CONTEXT

Cadoceras compressus is a Jurassic ammonite identification. Ammonites were extinct marine cephalopods with coiled shells, and their fossils are widely valued by collectors for their scientific importance, distinctive form and role in understanding Jurassic marine environments. The supplied identification places this specimen within the Lower Callovian stage of the Jurassic Period.

The specimen is associated with the Kellaways Clay. This geological unit is known in the Jurassic succession of England, and the stated Oxon, United Kingdom location gives the piece a clear regional context. The accompanying bivalve fossils add further interest to the block, representing another group of fossilised marine organisms preserved alongside the identified ammonite.

COLLECTOR AND DISPLAY APPEAL

With its named ammonite identification, Jurassic age designation and associated bivalve fossils, this is a strong choice for fossil collectors, geology enthusiasts, palaeontology students and educational displays. It can be used as an engaging example of Jurassic fossil material and the types of marine organisms that may be encountered in a sedimentary geological setting.

The specimen is from the Alice Purnell Collection, adding collection history to its presentation. Its natural fossil character makes it suitable for a fossil cabinet, study collection, classroom display or decorative geology presentation. The block format allows the ammonite and accompanying fossil content to be viewed as part of a geological specimen rather than as an isolated object.

SPECIMEN DETAILS

Product: Cadoceras compressus m ammonite block with bivalve fossils

Geological identification: Kellaways Clay, Lower Callovian, Jurassic Location: Oxon, United Kingdom Collection: From the Alice Purnell Collection

Full sizing is shown in the photographs. Please use the photographs to assess the specimen’s scale, visible form and presentation. The photograph shows the actual specimen you will receive.

AUTHENTICITY

This Fossil is a genuine specimen and Includes a Certificate of Authenticity lifetime guarantee generic card.

The included certificate wording accompanies the specimen as stated and supports its presentation as a genuine fossil specimen. This listing is intended for collectors and enthusiasts seeking an identified Jurassic ammonite fossil block with associated bivalve fossils from the Kellaways Clay and Oxon, United Kingdom.

Additional information

Weight 0.1 g
Dimensions 10 × 10 × 10 cm

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