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RARE Praeparkinsonia garantiformis Fossil Ammonite – Upper Bajocian, Jurassic, Segenthal Bavaria Germany – Genuine + COA
RARE Praeparkinsonia garantiformis Fossil Ammonite – Upper Bajocian, Jurassic, Segenthal Bavaria Germany – Genuine + COA - Image 2

RARE Praeparkinsonia garantiformis Fossil Ammonite – Upper Bajocian, Jurassic, Segenthal Bavaria Germany – Genuine + COA

£24.00

A rare and scientifically significant Praeparkinsonia garantiformis Fossil Ammonite, from the Upper Bajocian Stage of the Jurassic Period, collected at Segenthal, Bavaria, Germany. This ammonite is a highly recognisable species, with distinctive ribbing and morphology, making it both a collector’s specimen and an important stratigraphic fossil. The exact specimen shown in the photos is the one you will receive, supplied with a Certificate of Authenticity.

Fossil Type & Species:

  • Type: Ammonite (extinct marine cephalopod)
  • Species: Praeparkinsonia garantiformis
  • Order: Ammonitida
  • Superfamily: Stephanoceratoidea
  • Family: Parkinsoniidae

Geological Context:

  • Period: Jurassic
  • Epoch/Stage: Middle Jurassic – Upper Bajocian (approx. 170.3 to 168.3 million years ago)
  • Biozone: Garantiana Zone, where Praeparkinsonia garantiformis is an index species in European ammonite biostratigraphy
  • Depositional Environment: Marine shelf environment, alternating marls and limestones, highly favourable to ammonite preservation

Locality:

  • Region: Segenthal, Bavaria, Germany
  • Formation: Upper Bajocian limestone-marl successions of the Franconian Jura

Morphology & Features:

  • Evolute shell with wide umbilicus
  • Coarse, well-spaced ribs bifurcating from the umbilical edge
  • Rounded venter with ribbing crossing uninterrupted
  • Thickened ribbing and distinctive ornamentation, characteristic of Praeparkinsonia garantiformis

Scientific Notes:

  • Praeparkinsonia garantiformis was first described by Oppel (1863), a leading pioneer of Jurassic biostratigraphy
  • This ammonite is a key biostratigraphic marker used to define Upper Bajocian sequences across central Europe

Notable Details:

  • Excellent preservation with sharp ribbing and whorl structure
  • 100% natural, no restoration or composite work
  • Scale Reference: Each square or cube = 1cm. Please check the photograph for exact dimensions

Authenticity & Guarantee: All of our fossils are 100% genuine, responsibly sourced, and include a Certificate of Authenticity. The fossil you see is the exact specimen you will receive.

 

This Praeparkinsonia garantiformis ammonite is a scientifically valuable and visually striking specimen, ideal for collectors, educational use, or display.

(Actual as seen)

Only 1 left in stock

SKU: UF4277 Category:

Description

A rare and scientifically significant Praeparkinsonia garantiformis Fossil Ammonite, from the Upper Bajocian Stage of the Jurassic Period, collected at Segenthal, Bavaria, Germany. This ammonite is a highly recognisable species, with distinctive ribbing and morphology, making it both a collector’s specimen and an important stratigraphic fossil. The exact specimen shown in the photos is the one you will receive, supplied with a Certificate of Authenticity.

Fossil Type & Species:

  • Type: Ammonite (extinct marine cephalopod)
  • Species: Praeparkinsonia garantiformis
  • Order: Ammonitida
  • Superfamily: Stephanoceratoidea
  • Family: Parkinsoniidae

Geological Context:

  • Period: Jurassic
  • Epoch/Stage: Middle Jurassic – Upper Bajocian (approx. 170.3 to 168.3 million years ago)
  • Biozone: Garantiana Zone, where Praeparkinsonia garantiformis is an index species in European ammonite biostratigraphy
  • Depositional Environment: Marine shelf environment, alternating marls and limestones, highly favourable to ammonite preservation

Locality:

  • Region: Segenthal, Bavaria, Germany
  • Formation: Upper Bajocian limestone-marl successions of the Franconian Jura

Morphology & Features:

  • Evolute shell with wide umbilicus
  • Coarse, well-spaced ribs bifurcating from the umbilical edge
  • Rounded venter with ribbing crossing uninterrupted
  • Thickened ribbing and distinctive ornamentation, characteristic of Praeparkinsonia garantiformis

Scientific Notes:

  • Praeparkinsonia garantiformis was first described by Oppel (1863), a leading pioneer of Jurassic biostratigraphy
  • This ammonite is a key biostratigraphic marker used to define Upper Bajocian sequences across central Europe

Notable Details:

  • Excellent preservation with sharp ribbing and whorl structure
  • 100% natural, no restoration or composite work
  • Scale Reference: Each square or cube = 1cm. Please check the photograph for exact dimensions

Authenticity & Guarantee: All of our fossils are 100% genuine, responsibly sourced, and include a Certificate of Authenticity. The fossil you see is the exact specimen you will receive.

 

This Praeparkinsonia garantiformis ammonite is a scientifically valuable and visually striking specimen, ideal for collectors, educational use, 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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