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RARE AEGOCRIOCERAS CAPRICORNUS Heteromorph Ammonite Fossil – Lower Hauterivian, Cretaceous: Munich, Germany – Alice Purnell Collection

RARE AEGOCRIOCERAS CAPRICORNUS Heteromorph Ammonite Fossil – Lower Hauterivian, Cretaceous: Munich, Germany – Alice Purnell Collection

£120.00

A RARE and exceptional fossil heteromorph ammonite specimen of Aegocrioceras capricornus, originating from the Lower Hauterivian Stage of the Early Cretaceous Period, collected near Munich, Germany. This specimen is from the historically important Alice Purnell Collection, known for its well-documented and accurately classified fossils.

Aegocrioceras capricornus belongs to the heteromorph group of ammonites characterised by irregular, often helically uncoiled or partly coiled shells. The genus is assigned to the family Ancyloceratidae, within the superfamily Ancyloceratoidea, and the order Ammonitida.

Geological & Scientific Details:

  • Scientific Name: Aegocrioceras capricornus
  • Fossil Type: Heteromorph Ammonite
  • Geological Period: Cretaceous
  • Geological Stage: Lower Hauterivian (~132–129 million years ago)
  • Location Found: Munich, Germany
  • Order: Ammonitida
  • Superfamily: Ancyloceratoidea
  • Family: Ancyloceratidae
  • Morphological Features: Coiled to helically uncoiled shell, prominent ribbing, strong ornamentation, with complex sutures
  • Depositional Environment: Marine sedimentary environment – typically found in marl and limestone beds of the early Cretaceous seaways of Central Europe

Heteromorph ammonites like Aegocrioceras represent a unique evolutionary adaptation with morphological deviations that provide insights into palaeobiology, ecology, and biostratigraphy of the Early Cretaceous seas.

All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.

Please Note:

  • Scale Rule Squares / Cube = 1cm – full sizing is visible in the photo
  • The fossil pictured is the exact specimen you will receive
  • From the Alice Purnell Collection – perfect for collectors, researchers, or museum-quality display

A highly collectible and scientifically valuable ammonite fossil from a classic European locality.

(Actual as seen)

Only 1 left in stock

SKU: AF1203 Category:

Description

A RARE and exceptional fossil heteromorph ammonite specimen of Aegocrioceras capricornus, originating from the Lower Hauterivian Stage of the Early Cretaceous Period, collected near Munich, Germany. This specimen is from the historically important Alice Purnell Collection, known for its well-documented and accurately classified fossils.

Aegocrioceras capricornus belongs to the heteromorph group of ammonites characterised by irregular, often helically uncoiled or partly coiled shells. The genus is assigned to the family Ancyloceratidae, within the superfamily Ancyloceratoidea, and the order Ammonitida.

Geological & Scientific Details:

  • Scientific Name: Aegocrioceras capricornus
  • Fossil Type: Heteromorph Ammonite
  • Geological Period: Cretaceous
  • Geological Stage: Lower Hauterivian (~132–129 million years ago)
  • Location Found: Munich, Germany
  • Order: Ammonitida
  • Superfamily: Ancyloceratoidea
  • Family: Ancyloceratidae
  • Morphological Features: Coiled to helically uncoiled shell, prominent ribbing, strong ornamentation, with complex sutures
  • Depositional Environment: Marine sedimentary environment – typically found in marl and limestone beds of the early Cretaceous seaways of Central Europe

Heteromorph ammonites like Aegocrioceras represent a unique evolutionary adaptation with morphological deviations that provide insights into palaeobiology, ecology, and biostratigraphy of the Early Cretaceous seas.

All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.

Please Note:

  • Scale Rule Squares / Cube = 1cm – full sizing is visible in the photo
  • The fossil pictured is the exact specimen you will receive
  • From the Alice Purnell Collection – perfect for collectors, researchers, or museum-quality display

A highly collectible and scientifically valuable ammonite fossil from a classic European locality.

Additional information

Era

Cretaceous
Origin

Germany

Cretaceous Information

The Cretaceous Period (145–66 million years ago) was the final era of the Mesozoic, marked by the dominance of dinosaurs and the rise of flowering plants. It had a warm, greenhouse climate, with high sea levels that created vast shallow inland seas. Marine life flourished, including mosasaurs, ammonites, and rudist reefs, while the land was ruled by iconic dinosaurs like Tyrannosaurus rex, Triceratops, and Spinosaurus. Mammals and birds diversified, and insects thrived. The period ended with the mass extinction event, likely caused by an asteroid impact, wiping out the dinosaurs and paving the way for the rise of mammals in the Cenozoic.

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