Description
Own an authentic and scientifically significant ammonite fossil—this beautifully preserved specimen of Zetoceras zetes comes from the Lower Pliensbachian stage of the Early Jurassic period, collected near Hinterriss, Austria. Ammonites like this are extinct marine cephalopods, known for their coiled shells and key role in biostratigraphy.
Fossil Type: Ammonite (Extinct Marine Cephalopod)
Species: Zetoceras zetes
Geological Period: Jurassic (~201 to 174 million years ago)
Geological Stage: Lower Pliensbachian (~190 to 183 million years ago)
Location: Hinterriss, Tyrol, Austria
Scale Rule: Squares/Cube = 1cm (See photo for full sizing)
Specimen: What you see is exactly what you’ll receive—the photographed fossil
Authenticity: All of our fossils are 100% genuine specimens and come with a Certificate of Authenticity
Geological and Paleontological Information
Zetoceras zetes is an extinct genus of ammonites, a group of externally-shelled cephalopods that flourished in the Mesozoic oceans. The Lower Pliensbachian marks an important interval in Early Jurassic marine evolution, and ammonites from this stage are key for regional and global biostratigraphic correlation.
- Phylum: Mollusca
- Class: Cephalopoda
- Subclass: Ammonoidea
- Order: Ammonitida
- Superfamily: Eoderoceratoidea
- Family: Dactylioceratidae
- Genus: Zetoceras
- Species: zetes
- Depositional Environment: Shallow marine shelf with calcareous sedimentation; oxygen-rich waters conducive to ammonite proliferation
- Morphological Features: Moderately involute shell with fine ribbing and prominent whorls; the shell’s complex suture lines and preserved surface features reflect typical early Jurassic ammonoid characteristics
- Biozone: Associated with the Uptonia jamesoni or Amaltheus margaritatus ammonite zones (depending on stratigraphic context in Austria)
- Identifier: Described by Mesozoic paleontologists refining the taxonomy of early Jurassic cephalopods in the Alpine region
Why This Fossil is Special
Zetoceras zetes from Hinterriss is a rare and well-documented ammonite species, offering both aesthetic appeal and scientific value. Its preservation within the classic Lower Jurassic deposits of the Northern Calcareous Alps makes it an ideal collector’s piece or teaching specimen.
Why Buy From Us?
- 100% genuine fossil with Certificate of Authenticity
- Specimen shown in the listing photos is the one you’ll receive
- Ethically sourced and scientifically accurate descriptions
- Excellent for collectors, educators, or as a unique display item
Add a stunning piece of Mesozoic marine life to your collection with this authentic Zetoceras zetes ammonite fossil from the Lower Jurassic Pliensbachian stage of Hinterriss, Austria—a coiled and ribbed legacy from the ancient seas over 185 million years ago.





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