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Rare Amoeboceras serratum Fossil Ammonite Multi-Block – Oxfordian, Upper Jurassic, Ampthill Clay Wootton Bassett Wiltshire UK

£60.00

A rare Amoeboceras serratum Fossil Ammonite multi-block, from the Oxfordian Stage of the Upper Jurassic, collected from the Ampthill Clay Formation at Wootton Bassett, Wiltshire, United Kingdom. This specimen preserves multiple ammonites together, offering both scientific importance and excellent display value. The exact fossil shown in the photographs is the one you will receive, supplied with a Certificate of Authenticity.

Fossil Type & Species:

  • Type: Ammonite (extinct marine cephalopod)
  • Species: Amoeboceras serratum
  • Order: Ammonitida
  • Superfamily: Perisphinctoidea
  • Family: Cardioceratidae

Geological Context:

  • Period: Jurassic
  • Epoch/Stage: Upper Jurassic – Oxfordian (approx. 163.5 to 157.3 million years ago)
  • Biozone: Associated with the Serratum Zone, an important ammonite biozone within the Oxfordian, widely used for stratigraphic correlation in Europe
  • Formation: Ampthill Clay Formation
  • Depositional Environment: Marine clay and mudstone deposits of a shallow sea, excellent for fossil preservation

Locality:

  • Region: Wootton Bassett, Wiltshire, United Kingdom

Morphology & Features:

  • Multi-block with several ammonites preserved together in natural association
  • Moderately involute shells with narrow umbilicus
  • Strong ribbing crossing the flanks and extending over the venter
  • Diagnostic ribbing pattern typical of Amoeboceras serratum

Scientific Notes:

  • Amoeboceras serratum was first formally described by Sowerby in the 19th century
  • The genus Amoeboceras is widely used in ammonite biostratigraphy and is crucial for defining Oxfordian subdivisions in Europe

Notable Details:

  • Rare British multi-block fossil containing multiple ammonites
  • Excellent preservation with fine ribbing and detailed morphology
  • 100% genuine, natural fossil – no restoration
  • Scale Reference: Each square or cube = 1cm. Please see photographs for accurate sizing

Authenticity & Guarantee: All of our fossils are 100% genuine, responsibly sourced, and professionally curated. Every purchase includes a Certificate of Authenticity. The fossil shown is the exact specimen you will receive.

 

This Amoeboceras serratum multi-block is a rare and scientifically valuable fossil from the Oxfordian of Wiltshire – an outstanding addition for collectors, researchers, or display.

 

(Actual as seen)

Only 1 left in stock

SKU: UF4315 Category:

Description

A rare Amoeboceras serratum Fossil Ammonite multi-block, from the Oxfordian Stage of the Upper Jurassic, collected from the Ampthill Clay Formation at Wootton Bassett, Wiltshire, United Kingdom. This specimen preserves multiple ammonites together, offering both scientific importance and excellent display value. The exact fossil shown in the photographs is the one you will receive, supplied with a Certificate of Authenticity.

Fossil Type & Species:

  • Type: Ammonite (extinct marine cephalopod)
  • Species: Amoeboceras serratum
  • Order: Ammonitida
  • Superfamily: Perisphinctoidea
  • Family: Cardioceratidae

Geological Context:

  • Period: Jurassic
  • Epoch/Stage: Upper Jurassic – Oxfordian (approx. 163.5 to 157.3 million years ago)
  • Biozone: Associated with the Serratum Zone, an important ammonite biozone within the Oxfordian, widely used for stratigraphic correlation in Europe
  • Formation: Ampthill Clay Formation
  • Depositional Environment: Marine clay and mudstone deposits of a shallow sea, excellent for fossil preservation

Locality:

  • Region: Wootton Bassett, Wiltshire, United Kingdom

Morphology & Features:

  • Multi-block with several ammonites preserved together in natural association
  • Moderately involute shells with narrow umbilicus
  • Strong ribbing crossing the flanks and extending over the venter
  • Diagnostic ribbing pattern typical of Amoeboceras serratum

Scientific Notes:

  • Amoeboceras serratum was first formally described by Sowerby in the 19th century
  • The genus Amoeboceras is widely used in ammonite biostratigraphy and is crucial for defining Oxfordian subdivisions in Europe

Notable Details:

  • Rare British multi-block fossil containing multiple ammonites
  • Excellent preservation with fine ribbing and detailed morphology
  • 100% genuine, natural fossil – no restoration
  • Scale Reference: Each square or cube = 1cm. Please see photographs for accurate sizing

Authenticity & Guarantee: All of our fossils are 100% genuine, responsibly sourced, and professionally curated. Every purchase includes a Certificate of Authenticity. The fossil shown is the exact specimen you will receive.

 

This Amoeboceras serratum multi-block is a rare and scientifically valuable fossil from the Oxfordian of Wiltshire – an outstanding addition for collectors, researchers, or display.

 

Additional information

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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