Description
Authentic Globoceras globosum Fossil Ammonite
This is a genuine Globoceras globosum fossil ammonite, originating from the Upper Turonian Stage of the Late Cretaceous, approximately 90 million years ago. The specimen was discovered in Nigeria, a region with important fossil-bearing strata that preserve unique ammonite faunas from the Cretaceous seas. Each piece is carefully selected for its preservation and visual appeal and is accompanied by a Certificate of Authenticity, guaranteeing it as a 100% genuine specimen. The fossil shown in the photographs is the exact specimen you will receive, with a 1cm scale cube and rule included to provide precise sizing information.
Geological Context
The Upper Turonian was a period within the Late Cretaceous characterized by high global sea levels and warm climates, with epicontinental seas covering much of Africa and other parts of the globe. This created ideal environments for ammonites, which flourished in abundance and diversity. Nigerian Turonian deposits are particularly valuable because they provide a detailed record of ammonite evolution and distribution in the equatorial regions of the ancient Cretaceous oceans.
Ammonites from this region are important for biostratigraphy, allowing scientists to correlate strata across Africa, Europe, and beyond. They represent both a fascinating collector’s item and a scientifically significant fossil.
Scientific Classification
- Genus: Globoceras
- Species: Globoceras globosum
- Order: Ammonitida
- Superfamily: Acanthocerataceae
- Family: Coilopoceratidae
- Geological Stage: Upper Turonian, Late Cretaceous
- Provenance: Nigeria
Globoceras globosum is a diagnostic species that helps define ammonite assemblages of the Upper Turonian. Its presence in Nigerian deposits is particularly notable for understanding the distribution of ammonites in West Africa during this time.
Morphological Features
This ammonite displays the key features of Globoceras globosum:
- Globular, inflated shell form with a rounded profile.
- Strong ribbing across the flanks, reflecting the genus’ robust ornamentation.
- Well-defined suture patterns preserved in the fossil, offering insight into its evolutionary relationships.
- A relatively thick and sturdy shell, adapted to life in warm, shallow marine conditions.
These traits make it both a striking collector’s specimen and a textbook example of the morphological diversity within Cretaceous ammonites.
Collector and Scientific Value
Ammonites like Globoceras globosum hold great scientific importance, as they are valuable index fossils for the Upper Turonian. Their restricted stratigraphic range and widespread distribution allow geologists to date and correlate rock layers across continents.
For private collectors, this specimen offers both rarity and aesthetic appeal. Ammonites from Nigeria are less commonly available than Moroccan or European examples, making this piece a unique addition to any serious collection. Its bold morphology and excellent preservation highlight the diversity of ammonite life during the Cretaceous period.
Display and Educational Significance
This fossil is ideal for display in a private collection, educational institution, or museum setting, where it can be appreciated for both its natural beauty and its paleontological significance. Its preserved details demonstrate the evolutionary adaptations of ammonites and the marine ecosystems of the Late Cretaceous.
By acquiring this Globoceras globosum fossil ammonite from Nigeria, you are not only adding a rare and beautiful specimen to your collection but also preserving a tangible fragment of Earth’s deep-time history from a time when ammonites dominated the oceans.
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