Description
RARE Fossil Ammonite – Arcestes species from the Triassic Period, Carnian Stage, found at Fenerkrugel, Austria.
This exceptional ammonite fossil represents the genus Arcestes, a well-known group of extinct ammonoids from the Middle to Late Triassic period. This particular specimen originates from the Carnian Stage, roughly 237 to 227 million years ago, a critical interval marking the onset of modern reef ecosystems and the evolutionary radiation of ammonoids after the Permian extinction.
Geological & Paleontological Context:
- Location: Fenerkrugel, Austria
- Formation/Zone: Carnian Stage, Triassic System
- Fossil Type: Ammonite (cephalopod mollusc)
- Genus: Arcestes
- Geological Age: Late Triassic (Carnian Stage, ~230 Ma)
- Order: Ceratitida
- Superfamily: Arcestaceae
- Family: Arcestidae
Morphology & Features: Arcestes ammonites are known for their unusual shell morphology—characteristically almost spherical or globular shells with low ornamentation, a broad umbilicus, and simple to slightly ceratitic suture lines. These forms are thought to have been nektonic or possibly planktonic, with a unique mode of life compared to other ammonoids.
This particular specimen displays the classic globose profile with well-defined chambering and preserved suture detail, making it both scientifically valuable and aesthetically unique for collectors.
Depositional Environment: These fossils were originally preserved in shallow marine carbonate settings of the Tethyan realm, which during the Triassic period covered much of central Europe, including modern-day Austria. The environment was likely a warm, reef-fringed epicontinental sea.
Why This Specimen?
- Carefully selected and professionally sourced from Fenerkrugel, Austria.
- Comes with a Certificate of Authenticity.
- The specimen shown in the photo is the exact one you will receive.
- Scale shown (1 cm cubes) for precise size reference – please see photo for full measurements.
Ideal for: Collectors of Triassic fossils, palaeontology enthusiasts, museum-quality displays, and educational institutions. A rare opportunity to own a piece of deep-time marine life from a pivotal moment in Earth’s history.
All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.
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