Description
This listing features a RARE Carboniferous ammonite fossil of Wiedeyoceras pingus, a goniatitid ammonoid from the Finis Shale Formation, collected near Caddo, Texas, USA. This is a carefully selected and fully authentic specimen, and comes with a Certificate of Authenticity.
Wiedeyoceras pingus belongs to the:
- Order: Goniatitida
- Superfamily: Goniatitoidea
- Family: Eumorphoceratidae
It lived during the Late Carboniferous (Pennsylvanian) Period, particularly within the Missourian Stage, which corresponds to the Upper Pennsylvanian Subsystem (~305 million years ago).
The fossil is embedded in matrix from the Finis Shale, part of the Graham Formation. This geological unit was deposited in a low-energy marine shelf or basin environment, often interpreted as an oxygen-deficient sea floor with periodic influxes of sediment. These conditions fostered excellent preservation of marine fauna, particularly ammonoids.
Morphology and Features:
- Involute, tightly coiled planispiral shell
- Compressed discoidal shape with narrow umbilicus
- Typically smooth to faintly ornamented surface
- Well-defined lobes and saddles in the suture line, indicative of the Goniatitid order
These features help distinguish Wiedeyoceras pingus from other co-occurring genera and make it a desirable piece for both collectors and academic study.
The photographs show the exact specimen you will receive. Scale rule squares/cube = 1cm. For full dimensions, please refer to the photo.
Specimen Details:
- Species: Wiedeyoceras pingus
- Fossil Type: Ammonoid Shell (internal mould in shale matrix)
- Formation: Finis Shale (Graham Formation)
- Age: Upper Pennsylvanian (Missourian Stage)
- Location: Caddo, Texas, USA
- Preservation: Natural shale matrix with fossil impression
This fossil is an excellent representative of Paleozoic ammonoids and is seldom offered on the open market, especially with secure provenance from Texas. A striking and scientifically significant addition to any fossil collection.
All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.
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