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Rare pararasinia sp. fossil ammonite block – elsworth rock, upper kimmeridgian, jurassic, elsworth, cambridgeshire, uk – coa
Rare pararasinia sp. fossil ammonite block – elsworth rock, upper kimmeridgian, jurassic, elsworth, cambridgeshire, uk – coa - Image 2
Rare pararasinia sp. fossil ammonite block – elsworth rock, upper kimmeridgian, jurassic, elsworth, cambridgeshire, uk – coa - Image 3

Rare pararasinia sp. fossil ammonite block – elsworth rock, upper kimmeridgian, jurassic, elsworth, cambridgeshire, uk – coa

£60.00

This is a rare fossil ammonite block featuring Pararasinia sp., dating to the Upper Kimmeridgian stage of the Late Jurassic (~154 million years ago), discovered in Elsworth, Cambridgeshire, United Kingdom.

Pararasinia sp. is a genus of ammonites known for its intricate ribbing and compressed shell morphology, characteristic of the Perisphinctidae family. These ammonites were fast-moving, nektonic predators that thrived in the shallow marine seas of the Late Jurassic period. The presence of this specimen within Elsworth Rock, a well-documented Upper Kimmeridgian deposit, provides insight into the marine biodiversity and paleoenvironment of the time.

The Upper Kimmeridgian formations of Elsworth are known for their exceptionally preserved ammonites, making this fossil an excellent display or study specimen for collectors, researchers, and enthusiasts of British Jurassic paleontology.

Geological Information:

  • Formation: Elsworth Rock
  • Stage: Upper Kimmeridgian, Late Jurassic (~154 million years old)
  • Location: Elsworth, Cambridgeshire, United Kingdom
  • Depositional Environment: Shallow marine seabed with calcareous sedimentation

Fossil Characteristics:

  • Rare Pararasinia sp. ammonite fossil block
  • Distinctive ribbing and well-preserved structure
  • Exceptional multi-fossil preservation from Elsworth Rock
  • Highly collectible Late Jurassic ammonite specimen from the UK

Key Features:

  • Authentic Pararasinia sp. ammonite fossil block
  • Rare Upper Kimmeridgian ammonite from Elsworth, 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: AF0575 Category:

Description

This is a rare fossil ammonite block featuring Pararasinia sp., dating to the Upper Kimmeridgian stage of the Late Jurassic (~154 million years ago), discovered in Elsworth, Cambridgeshire, United Kingdom.

Pararasinia sp. is a genus of ammonites known for its intricate ribbing and compressed shell morphology, characteristic of the Perisphinctidae family. These ammonites were fast-moving, nektonic predators that thrived in the shallow marine seas of the Late Jurassic period. The presence of this specimen within Elsworth Rock, a well-documented Upper Kimmeridgian deposit, provides insight into the marine biodiversity and paleoenvironment of the time.

The Upper Kimmeridgian formations of Elsworth are known for their exceptionally preserved ammonites, making this fossil an excellent display or study specimen for collectors, researchers, and enthusiasts of British Jurassic paleontology.

Geological Information:

  • Formation: Elsworth Rock
  • Stage: Upper Kimmeridgian, Late Jurassic (~154 million years old)
  • Location: Elsworth, Cambridgeshire, United Kingdom
  • Depositional Environment: Shallow marine seabed with calcareous sedimentation

Fossil Characteristics:

  • Rare Pararasinia sp. ammonite fossil block
  • Distinctive ribbing and well-preserved structure
  • Exceptional multi-fossil preservation from Elsworth Rock
  • Highly collectible Late Jurassic ammonite specimen from the UK

Key Features:

  • Authentic Pararasinia sp. ammonite fossil block
  • Rare Upper Kimmeridgian ammonite from Elsworth, 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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