RARE Platygraphoceras scriptum Fossil Ammonite – Aalenian Jurassic – Stanford Lane Sherborne UK – Alice Purnell Collection
£ 48.00
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; subtropical sea with carbonate sedimentation typical of the Inferior OoliteTaxonomic Classification:
• Family: Graphoceratidae
• Superfamily: Hildoceratoidea
• Order: Ammonitida
• Class: Cephalopoda
• Phylum: MolluscaMorphological 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 preservationNotable 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 graphoceratidsBiozone & 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 EuropeSummary: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.
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; subtropical sea with carbonate sedimentation typical of the Inferior OoliteTaxonomic Classification:
• Family: Graphoceratidae
• Superfamily: Hildoceratoidea
• Order: Ammonitida
• Class: Cephalopoda
• Phylum: MolluscaMorphological 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 preservationNotable 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 graphoceratidsBiozone & 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 EuropeSummary: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.
