Description
A rare and scientifically valuable specimen of Mesogaudryceras leptonema, an extinct genus of ammonite from the Lower Cenomanian Stage of the Cretaceous Period, discovered in fossil-rich deposits of Italy.
Mesogaudryceras leptonema is known for its finely ribbed, evolute shell and detailed suture lines. This genus represents a transitional form between early and more derived ammonite forms of the mid-Cretaceous, making it an important species for biostratigraphic and evolutionary studies.
All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.
The photo shows the actual specimen you will receive, alongside a 1cm scale cube for precise sizing. Please refer to the image for full measurement details.
Geological and Taxonomic Information:
- Species: Mesogaudryceras leptonema
- Fossil Type: Ammonite (extinct marine cephalopod)
- Age: Early Late Cretaceous, Lower Cenomanian (~100.5 to 98 million years ago)
- Location: Italy
- Formation: Marine limestone and marl of the Cenomanian deposits
- Depositional Environment: Open marine shelf with calcareous sedimentation
- Geological Stage: Lower Cenomanian
Taxonomic Classification:
- Order: Ammonitida
- Superfamily: Acanthoceratoidea
- Family: Gaudryceratidae
- Genus: Mesogaudryceras
Morphology & Notable Features:
- Evolute shell with visible whorls and fine, dense ribbing
- Deeply incised suture lines
- Sub-rounded cross-section with minimal keel
- Excellent preservation and fossil surface detail
Scientific & Collector Significance:
Mesogaudryceras species are vital for understanding ammonite evolution in the early Late Cretaceous and act as markers in global stratigraphy. This specimen offers a glimpse into marine life during a major greenhouse phase in Earth’s history.
Specimen Details:
- Approximate Size: Refer to image with 1cm scale cube
- Condition: Expertly cleaned and preserved
- Origin: Italy
- Includes: Certificate of Authenticity
Ideal For:
- Collectors of rare European ammonites
- Academic and educational display
- Fossil enthusiasts and palaeontology researchers
- Natural history exhibits and décor
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