Rare Perisphinctes (Dichotomosphinctes) antecedens Fossil Ammonite | Middle Oxfordian Jurassic | Le Vanneau Deux-Sèvres France
£ 36.00
This listing is for a Rare Fossil Ammonite (Perisphinctes (Dichotomosphinctes)
antecedens) from the Middle Oxfordian Stage of the Late Jurassic, discovered at Le Vanneau, Deux-Sèvres, France.100% Genuine Fossil Specimen – All of our fossils are authentic and come with a Certificate of Authenticity.Exact Specimen Shown – The photos provided are of the actual fossil you will receive.Scale for Reference – Scale rule squares/cube = 1cm. Please see photos for full sizing.GEOLOGICAL & SCIENTIFIC DETAILS:
• Fossil Type: Ammonite (extinct marine mollusc, related to squid and octopus).
• Species: Perisphinctes (Dichotomosphinctes) antecedens.
• Order: Ammonitida.
• Superfamily: Perisphinctoidea.
• Family: Perisphinctidae.
• Geological Period: Jurassic.
• Stage/Age: Middle Oxfordian (approx. 163 – 157 million years ago).
• Locality: Le Vanneau, Deux-Sèvres, France.NOTABLE FEATURES & MORPHOLOGY:
• Shell Form: Evolute shell with widely open coiling, exposing inner whorls.
• Ribs: Prominent bifurcating ribs, a diagnostic feature of Dichotomosphinctes.
• Whorl Section: Rounded to slightly compressed, creating an ornate shell appearance.
• Size: A rare, well-preserved specimen, highly desirable among collectors.DEPOSITIONAL ENVIRONMENT:During the Oxfordian, western France was submerged under shallow epicontinental seas. These warm, carbonate-rich environments preserved ammonites and associated marine fauna in remarkable detail.SCIENTIFIC & COLLECTING IMPORTANCE:Perisphinctes (Dichotomosphinctes) antecedens is a key ammonite species for biostratigraphic correlation in the Oxfordian. Its characteristic ribbing and shell form make it an important index fossil as well as a valuable addition for fossil collectors. Why Buy This Fossil?
• A rare ammonite species from the Oxfordian of France.
• Excellent preservation with distinctive ribbing.
• A highly collectible specimen for Jurassic ammonite enthusiasts or European fossil collectors.
• Supplied with a Certificate of Authenticity guaranteeing its provenance. All of our fossils are responsibly sourced, carefully prepared, and chosen for quality.
antecedens) from the Middle Oxfordian Stage of the Late Jurassic, discovered at Le Vanneau, Deux-Sèvres, France.100% Genuine Fossil Specimen – All of our fossils are authentic and come with a Certificate of Authenticity.Exact Specimen Shown – The photos provided are of the actual fossil you will receive.Scale for Reference – Scale rule squares/cube = 1cm. Please see photos for full sizing.GEOLOGICAL & SCIENTIFIC DETAILS:
• Fossil Type: Ammonite (extinct marine mollusc, related to squid and octopus).
• Species: Perisphinctes (Dichotomosphinctes) antecedens.
• Order: Ammonitida.
• Superfamily: Perisphinctoidea.
• Family: Perisphinctidae.
• Geological Period: Jurassic.
• Stage/Age: Middle Oxfordian (approx. 163 – 157 million years ago).
• Locality: Le Vanneau, Deux-Sèvres, France.NOTABLE FEATURES & MORPHOLOGY:
• Shell Form: Evolute shell with widely open coiling, exposing inner whorls.
• Ribs: Prominent bifurcating ribs, a diagnostic feature of Dichotomosphinctes.
• Whorl Section: Rounded to slightly compressed, creating an ornate shell appearance.
• Size: A rare, well-preserved specimen, highly desirable among collectors.DEPOSITIONAL ENVIRONMENT:During the Oxfordian, western France was submerged under shallow epicontinental seas. These warm, carbonate-rich environments preserved ammonites and associated marine fauna in remarkable detail.SCIENTIFIC & COLLECTING IMPORTANCE:Perisphinctes (Dichotomosphinctes) antecedens is a key ammonite species for biostratigraphic correlation in the Oxfordian. Its characteristic ribbing and shell form make it an important index fossil as well as a valuable addition for fossil collectors. Why Buy This Fossil?
• A rare ammonite species from the Oxfordian of France.
• Excellent preservation with distinctive ribbing.
• A highly collectible specimen for Jurassic ammonite enthusiasts or European fossil collectors.
• Supplied with a Certificate of Authenticity guaranteeing its provenance. All of our fossils are responsibly sourced, carefully prepared, and chosen for quality.
