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RARE Platygraphoceras scriptum Fossil Ammonite – Aalenian Jurassic – Stanford Lane Sherborne UK – Alice Purnell Collection
RARE Platygraphoceras scriptum Fossil Ammonite – Aalenian Jurassic – Stanford Lane Sherborne UK – Alice Purnell Collection - Image 2
RARE Platygraphoceras scriptum Fossil Ammonite – Aalenian Jurassic – Stanford Lane Sherborne UK – Alice Purnell Collection - Image 3
RARE Platygraphoceras scriptum Fossil Ammonite – Aalenian Jurassic – Stanford Lane Sherborne UK – Alice Purnell Collection - Image 4

RARE Platygraphoceras scriptum Fossil Ammonite – Aalenian Jurassic – Stanford Lane Sherborne UK – Alice Purnell Collection

Original price was: £48.00.Current price is: £43.20.

For sale is a rare and scientifically notable specimen of Platygraphoceras scriptum, a Middle Jurassic ammonite from the Aalenian Stage, discovered at Stanford Lane, Sherborne, Dorset, United Kingdom. This locality is part of the classic Inferior Oolite exposures of the UK, renowned for yielding beautifully preserved ammonites.

This ammonite fossil comes from the esteemed Alice Purnell Collection, known for high-quality, scientifically verified specimens. The image shows the actual fossil you will receive. A Certificate of Authenticity is included with your purchase, attesting to the fossil’s identity and provenance.

Scale Rule Squares / Cube = 1cm: Full sizing available in the photo.

Geological & Palaeontological Details:

  • Species: Platygraphoceras scriptum
  • Geological Period: Jurassic
  • Stage: Lower to Middle Aalenian (approximately 172 million years ago)
  • Formation: Inferior Oolite Group
  • Location: Stanford Lane Quarry, Sherborne, Dorset, United Kingdom
  • Depositional Environment: Shallow marine shelf; calm, subtropical sea with carbonate sedimentation typical of the Inferior Oolite

Taxonomic Classification:

  • Family: Graphoceratidae
  • Superfamily: Hildoceratoidea
  • Order: Ammonitida
  • Class: Cephalopoda
  • Phylum: Mollusca

Morphological Features:

  • Generally planispiral and compressed shell
  • Fine ribbing and subtle ventrolateral grooves
  • Involute coiling with a narrow umbilicus
  • Well-defined growth lines and suture patterns
  • May exhibit faint keel or smooth venter depending on preservation

Notable Information:

  • Platygraphoceras scriptum is a diagnostic ammonite species for the Aalenian stage, often used in biozonation
  • It is considered relatively uncommon, especially in such well-preserved form from Sherborne
  • Specimens from this site offer excellent detail and stratigraphic importance for collectors and palaeontologists alike
  • The genus is associated with evolutionary transitions between early Bajocian hildoceratids and earlier graphoceratids

Biozone & Correlation (where identifiable):

  • Likely part of the Graphoceras concavum or Opalinum Subzones depending on precise stratigraphy
  • Important in regional correlation within the Lower to Middle Jurassic ammonite zones across Europe

Summary:

This Platygraphoceras scriptum fossil from Stanford Lane, Sherborne represents an exceptional Middle Jurassic ammonite from the UK’s classic Inferior Oolite succession. A collector’s specimen with both educational and scientific appeal, backed by provenance from the Alice Purnell Collection, and accompanied by a Certificate of Authenticity, this is a standout addition to any fossil collection.

Important Notes:

All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.

The specimen pictured is the exact one you will receive.

Scale cubes = 1cm. Please refer to the image for full sizing.

(Actual as seen)

Only 1 left in stock

SKU: AF1276 Category:

Description

For sale is a rare and scientifically notable specimen of Platygraphoceras scriptum, a Middle Jurassic ammonite from the Aalenian Stage, discovered at Stanford Lane, Sherborne, Dorset, United Kingdom. This locality is part of the classic Inferior Oolite exposures of the UK, renowned for yielding beautifully preserved ammonites.

This ammonite fossil comes from the esteemed Alice Purnell Collection, known for high-quality, scientifically verified specimens. The image shows the actual fossil you will receive. A Certificate of Authenticity is included with your purchase, attesting to the fossil’s identity and provenance.

Scale Rule Squares / Cube = 1cm: Full sizing available in the photo.

Geological & Palaeontological Details:

  • Species: Platygraphoceras scriptum
  • Geological Period: Jurassic
  • Stage: Lower to Middle Aalenian (approximately 172 million years ago)
  • Formation: Inferior Oolite Group
  • Location: Stanford Lane Quarry, Sherborne, Dorset, United Kingdom
  • Depositional Environment: Shallow marine shelf; calm, subtropical sea with carbonate sedimentation typical of the Inferior Oolite

Taxonomic Classification:

  • Family: Graphoceratidae
  • Superfamily: Hildoceratoidea
  • Order: Ammonitida
  • Class: Cephalopoda
  • Phylum: Mollusca

Morphological Features:

  • Generally planispiral and compressed shell
  • Fine ribbing and subtle ventrolateral grooves
  • Involute coiling with a narrow umbilicus
  • Well-defined growth lines and suture patterns
  • May exhibit faint keel or smooth venter depending on preservation

Notable Information:

  • Platygraphoceras scriptum is a diagnostic ammonite species for the Aalenian stage, often used in biozonation
  • It is considered relatively uncommon, especially in such well-preserved form from Sherborne
  • Specimens from this site offer excellent detail and stratigraphic importance for collectors and palaeontologists alike
  • The genus is associated with evolutionary transitions between early Bajocian hildoceratids and earlier graphoceratids

Biozone & Correlation (where identifiable):

  • Likely part of the Graphoceras concavum or Opalinum Subzones depending on precise stratigraphy
  • Important in regional correlation within the Lower to Middle Jurassic ammonite zones across Europe

Summary:

This Platygraphoceras scriptum fossil from Stanford Lane, Sherborne represents an exceptional Middle Jurassic ammonite from the UK’s classic Inferior Oolite succession. A collector’s specimen with both educational and scientific appeal, backed by provenance from the Alice Purnell Collection, and accompanied by a Certificate of Authenticity, this is a standout addition to any fossil collection.

Important Notes:

All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.

The specimen pictured is the exact one you will receive.

Scale cubes = 1cm. Please refer to the image for full sizing.

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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