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Brasilia bradfordensis Fossil Ammonite – Lower Aalenian Jurassic – Württemberg Germany – Genuine Fossil with Certificate

£18.00

This listing is for a genuine Brasilia bradfordensis fossil ammonite from the Lower Aalenian Stage of the Jurassic Period, discovered in Württemberg, Germany. This well-preserved ammonite specimen offers excellent ribbed detail and is a fine example from an important transitional stage in ammonite evolution. The photo shows the exact fossil you will receive, and the scale cube = 1cm allows for accurate size reference. Please refer to the photo for full dimensions.

Species & Classification:

  • Genus & Species: Brasilia bradfordensis
  • Type: Fossil Ammonite (Extinct Marine Cephalopod)
  • Order: Ammonitida
  • Superfamily: Hammatoceratoidea
  • Family: Hammatoceratidae
  • Phylum: Mollusca
  • Class: Cephalopoda

Geological & Stratigraphic Context:

  • Geological Period: Jurassic
  • Stage: Lower Aalenian (Middle Jurassic Epoch, c. 174–170 million years ago)
  • Formation: Possibly Opalinuston Formation (local equivalents in Württemberg)
  • Locality: Württemberg, Baden-Württemberg, Germany
  • Biozone: Bradfordensis Zone (named after Brasilia bradfordensis)
  • Depositional Environment: Shallow to moderately deep marine setting, likely muddy seafloor with low oxygen in deeper layers contributing to fossil preservation

Morphological Features:

  • Evolute shell form with prominent ribbing across the flanks
  • Whorls display dense, regular transverse ribs
  • Sutures moderately complex, typical of Hammatoceratidae
  • Shell structure aids in zonal biostratigraphy of the Lower Aalenian

Notable Information:

  • Brasilia bradfordensis is a key biostratigraphic index fossil for the Lower Aalenian and defines the Bradfordensis Biozone
  • Used extensively in European Jurassic correlation studies, especially in Germany and the UK
  • The genus Brasilia is transitional between early Toarcian ammonites and later Middle Jurassic forms, making it of high palaeontological value

Why Buy From Us?

  • 100% authentic fossil, responsibly sourced
  • Supplied with a Certificate of Authenticity
  • You receive the exact fossil pictured
  • Perfect for collectors, educators, or geological research

This scientifically significant Brasilia bradfordensis ammonite from the Lower Aalenian of Württemberg, Germany, is a rare and valuable fossil showcasing an important phase in Jurassic marine evolution. A beautiful addition to any collection or display.

(Actual as seen)

Out of stock

SKU: SF0489 Category:

Description

This listing is for a genuine Brasilia bradfordensis fossil ammonite from the Lower Aalenian Stage of the Jurassic Period, discovered in Württemberg, Germany. This well-preserved ammonite specimen offers excellent ribbed detail and is a fine example from an important transitional stage in ammonite evolution. The photo shows the exact fossil you will receive, and the scale cube = 1cm allows for accurate size reference. Please refer to the photo for full dimensions.

Species & Classification:

  • Genus & Species: Brasilia bradfordensis
  • Type: Fossil Ammonite (Extinct Marine Cephalopod)
  • Order: Ammonitida
  • Superfamily: Hammatoceratoidea
  • Family: Hammatoceratidae
  • Phylum: Mollusca
  • Class: Cephalopoda

Geological & Stratigraphic Context:

  • Geological Period: Jurassic
  • Stage: Lower Aalenian (Middle Jurassic Epoch, c. 174–170 million years ago)
  • Formation: Possibly Opalinuston Formation (local equivalents in Württemberg)
  • Locality: Württemberg, Baden-Württemberg, Germany
  • Biozone: Bradfordensis Zone (named after Brasilia bradfordensis)
  • Depositional Environment: Shallow to moderately deep marine setting, likely muddy seafloor with low oxygen in deeper layers contributing to fossil preservation

Morphological Features:

  • Evolute shell form with prominent ribbing across the flanks
  • Whorls display dense, regular transverse ribs
  • Sutures moderately complex, typical of Hammatoceratidae
  • Shell structure aids in zonal biostratigraphy of the Lower Aalenian

Notable Information:

  • Brasilia bradfordensis is a key biostratigraphic index fossil for the Lower Aalenian and defines the Bradfordensis Biozone
  • Used extensively in European Jurassic correlation studies, especially in Germany and the UK
  • The genus Brasilia is transitional between early Toarcian ammonites and later Middle Jurassic forms, making it of high palaeontological value

Why Buy From Us?

  • 100% authentic fossil, responsibly sourced
  • Supplied with a Certificate of Authenticity
  • You receive the exact fossil pictured
  • Perfect for collectors, educators, or geological research

This scientifically significant Brasilia bradfordensis ammonite from the Lower Aalenian of Württemberg, Germany, is a rare and valuable fossil showcasing an important phase in Jurassic marine evolution. A beautiful addition to any collection or display.

Additional information

Era

Jurassic

Origin

Germany

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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