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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RARE Macrocephalites (Kamptokephalites) cossmani Ammonite Fossil | Upper Callovian Jurassic | Switzerland | Authentic Fossil with COA
RARE Macrocephalites (Kamptokephalites) cossmani Ammonite Fossil | Upper Callovian Jurassic | Switzerland | Authentic Fossil with COA - Image 2

RARE Macrocephalites (Kamptokephalites) cossmani Ammonite Fossil | Upper Callovian Jurassic | Switzerland | Authentic Fossil with COA

£36.00

This listing features a RARE fossil ammonite of Macrocephalites (Kamptokephalites) cossmani, originating from the Upper Callovian Stage of the Middle Jurassic, discovered in Switzerland. Dated to approximately 161–159 million years ago, this exceptional specimen represents a highly collectible species from the iconic European Jurassic deposits.

All our fossils are 100% genuine specimens and include a Certificate of Authenticity. The photo shows the actual fossil you will receive. The cube in the photo equals 1cm — please refer to the image for complete sizing.

Geological & Scientific Information:

  • Fossil Type: Ammonite (extinct marine cephalopod)
  • Genus/Subgenus: Macrocephalites (Kamptokephalites)
  • Species: Macrocephalites (Kamptokephalites) cossmani
  • Family: Macrocephalitidae
  • Superfamily: Stephanoceratoidea
  • Order: Ammonitida
  • Geological Stage: Upper Callovian, Middle Jurassic (~161–159 million years ago)
  • Location: Switzerland
  • Depositional Environment: Shallow marine platform, silty and calcareous sediments typical of the Jura Mountains basin
  • Biozone Relevance: Macrocephalites species are key zonal ammonites used to correlate Middle to Upper Jurassic sequences across Europe

Morphological Features:

  • Broad, involute shell with a rounded to flattened venter
  • Dense, bifurcating ribbing that strengthens towards the outer whorls
  • Often exhibits a slightly compressed profile with complex suture lines
  • Subtle tuberculation may be present along the flanks in some specimens

Scientific & Collector Importance: Macrocephalites (Kamptokephalites) cossmani is a regionally significant ammonite, particularly within the Upper Callovian ammonite zones of Western and Central Europe. Its rarity in Swiss localities, coupled with its defined morphology and stratigraphic value, makes it a prized fossil for both research and private collections.

Collector & Display Appeal:

  • Seldom available Swiss locality specimen
  • Excellent preservation and natural detail
  • Great addition to any Jurassic ammonite or European fossil collection

Why Buy from Us?

  • All specimens are 100% authentic and legally sourced
  • Includes a Certificate of Authenticity
  • Professionally cleaned, described, and photographed for transparency

Add this scientifically valuable and visually impressive Macrocephalites (Kamptokephalites) cossmani ammonite fossil to your collection—an authentic relic of Switzerland’s ancient Jurassic seas.

(Actual as seen)

Only 1 left in stock

SKU: UF3765 Category:

Description

This listing features a RARE fossil ammonite of Macrocephalites (Kamptokephalites) cossmani, originating from the Upper Callovian Stage of the Middle Jurassic, discovered in Switzerland. Dated to approximately 161–159 million years ago, this exceptional specimen represents a highly collectible species from the iconic European Jurassic deposits.

All our fossils are 100% genuine specimens and include a Certificate of Authenticity. The photo shows the actual fossil you will receive. The cube in the photo equals 1cm — please refer to the image for complete sizing.

Geological & Scientific Information:

  • Fossil Type: Ammonite (extinct marine cephalopod)
  • Genus/Subgenus: Macrocephalites (Kamptokephalites)
  • Species: Macrocephalites (Kamptokephalites) cossmani
  • Family: Macrocephalitidae
  • Superfamily: Stephanoceratoidea
  • Order: Ammonitida
  • Geological Stage: Upper Callovian, Middle Jurassic (~161–159 million years ago)
  • Location: Switzerland
  • Depositional Environment: Shallow marine platform, silty and calcareous sediments typical of the Jura Mountains basin
  • Biozone Relevance: Macrocephalites species are key zonal ammonites used to correlate Middle to Upper Jurassic sequences across Europe

Morphological Features:

  • Broad, involute shell with a rounded to flattened venter
  • Dense, bifurcating ribbing that strengthens towards the outer whorls
  • Often exhibits a slightly compressed profile with complex suture lines
  • Subtle tuberculation may be present along the flanks in some specimens

Scientific & Collector Importance: Macrocephalites (Kamptokephalites) cossmani is a regionally significant ammonite, particularly within the Upper Callovian ammonite zones of Western and Central Europe. Its rarity in Swiss localities, coupled with its defined morphology and stratigraphic value, makes it a prized fossil for both research and private collections.

Collector & Display Appeal:

  • Seldom available Swiss locality specimen
  • Excellent preservation and natural detail
  • Great addition to any Jurassic ammonite or European fossil collection

Why Buy from Us?

  • All specimens are 100% authentic and legally sourced
  • Includes a Certificate of Authenticity
  • Professionally cleaned, described, and photographed for transparency

Add this scientifically valuable and visually impressive Macrocephalites (Kamptokephalites) cossmani ammonite fossil to your collection—an authentic relic of Switzerland’s ancient Jurassic seas.

Additional information

Era

Jurassic

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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