Fossils for Sale - High-quality BRITISH and WORLDWIDE Fossils. An impressive selection of fossils, including Ammonites, Trilobites, Belemnites, Fossil Fish, Fossil Shark Teeth, Fossilised Insects in Amber, Dinosaurs, and Reptiles. UK Fossils was formed in 1988 and collects and preps our own fossils in the heart of the Jurassic Coast, collecting fossils from Lyme Regis, Charmouth and Somerset. Our passion for fossils is reflected in our carefully curated collection, which includes some of the rarest and most unique specimens available.

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Dichotomoceras bifurcatoides Fossil Ammonite – Oxfordian Jurassic – Poitou France – Genuine Specimen with Certificate

£14.40

This listing features a genuine Dichotomoceras bifurcatoides fossil ammonite from the Oxfordian Stage of the Jurassic Period, collected in Poitou, France. This elegant fossil showcases the distinctive bifurcating rib patterns typical of the genus and is an excellent representative of mid-to-late Jurassic marine cephalopods.

  • Fossil Type: Ammonite (extinct marine cephalopod mollusc)
  • Species: Dichotomoceras bifurcatoides
  • Geological Period: Jurassic
  • Geological Stage: Upper Oxfordian (~163 to 157 million years ago)
  • Location: Poitou region, western France
  • Stratigraphy: Typically associated with marly limestone and marine sedimentary beds of the Upper Jurassic seaway

Scientific & Geological Details:

  • Order: Ammonitida
  • Superfamily: Perisphinctoidea
  • Family: Perisphinctidae
  • Morphological Features:
  • Involute to moderately evolute shell with compressed whorls
  • Strong bifurcating ribs—often originating near the umbilical shoulder and splitting midway along the flank
  • A narrow ventral groove may be present
  • Ornamentation is both diagnostic and aesthetically pleasing, making it a favourite among collectors
  • Biozone:
  • Generally falls within the Perisphinctes bifurcatus biozone of the Upper Oxfordian
  • Depositional Environment:
  • Warm, shallow marine shelf associated with the western European Tethyan margins
  • Excellent fossil preservation conditions due to fine-grained carbonate mud deposition
  • Notable:
  • Dichotomoceras ammonites are important biostratigraphic indicators used in correlating Jurassic sequences across Europe
  • Known for their distinct ribbing pattern which aids in precise species-level identification
  • Formal Identification:
  • First described and differentiated based on morphological distinctions from related genera in 20th-century European palaeontological monographs

Why This Fossil is Special:

  • A scientifically important species that represents a key evolutionary stage in Late Jurassic ammonite development
  • Sourced from one of France’s historically rich fossil localities
  • Attractive bifurcated ribbing enhances display quality
  • Perfect for collectors, educators, and enthusiasts alike

Additional Information:

  • All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity
  • Scale Rule Squares / Cube = 1cm: Full sizing please see the listing photo
  • This fossil is a carefully selected individual specimen. The item shown in the photo is exactly what you will receive

 

(Actual as seen)

Out of stock

SKU: SF0395 Category:

Description

This listing features a genuine Dichotomoceras bifurcatoides fossil ammonite from the Oxfordian Stage of the Jurassic Period, collected in Poitou, France. This elegant fossil showcases the distinctive bifurcating rib patterns typical of the genus and is an excellent representative of mid-to-late Jurassic marine cephalopods.

  • Fossil Type: Ammonite (extinct marine cephalopod mollusc)
  • Species: Dichotomoceras bifurcatoides
  • Geological Period: Jurassic
  • Geological Stage: Upper Oxfordian (~163 to 157 million years ago)
  • Location: Poitou region, western France
  • Stratigraphy: Typically associated with marly limestone and marine sedimentary beds of the Upper Jurassic seaway

Scientific & Geological Details:

  • Order: Ammonitida
  • Superfamily: Perisphinctoidea
  • Family: Perisphinctidae
  • Morphological Features:
  • Involute to moderately evolute shell with compressed whorls
  • Strong bifurcating ribs—often originating near the umbilical shoulder and splitting midway along the flank
  • A narrow ventral groove may be present
  • Ornamentation is both diagnostic and aesthetically pleasing, making it a favourite among collectors
  • Biozone:
  • Generally falls within the Perisphinctes bifurcatus biozone of the Upper Oxfordian
  • Depositional Environment:
  • Warm, shallow marine shelf associated with the western European Tethyan margins
  • Excellent fossil preservation conditions due to fine-grained carbonate mud deposition
  • Notable:
  • Dichotomoceras ammonites are important biostratigraphic indicators used in correlating Jurassic sequences across Europe
  • Known for their distinct ribbing pattern which aids in precise species-level identification
  • Formal Identification:
  • First described and differentiated based on morphological distinctions from related genera in 20th-century European palaeontological monographs

Why This Fossil is Special:

  • A scientifically important species that represents a key evolutionary stage in Late Jurassic ammonite development
  • Sourced from one of France’s historically rich fossil localities
  • Attractive bifurcated ribbing enhances display quality
  • Perfect for collectors, educators, and enthusiasts alike

Additional Information:

  • All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity
  • Scale Rule Squares / Cube = 1cm: Full sizing please see the listing photo
  • This fossil is a carefully selected individual specimen. The item shown in the photo is exactly what you will receive

 

Additional information

Era

Jurassic

Origin

France

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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