The Langental Formation, also spelled as Langetal Formation, is a Late Eocene (Bartonian to Priabonian) geologic formation cropping out in the Sperrgebiet, ǁKaras Region of southwestern Namibia. The siltstones and sandstones of the formation were deposited in a shallow marine environment.[1] The Langental Formation was deposited under hot and humid conditions. The formation overlies the Silica Beds unit and is overlain by the Blaubok Conglomerate.[2] The Langental Formation provides many fossil invertebrates and fish.
| Langental Formation | |
|---|---|
| Stratigraphic range: Bartonian-Priabonian ~ | |
| Type | Geological formation |
| Underlies | Blaubok Conglomerate |
| Overlies | Silica Beds |
| Lithology | |
| Primary | Sandstone, siltstone |
| Location | |
| Coordinates | 27°24′S 15°24′E / 27.4°S 15.4°E |
| Approximate paleocoordinates | 31°24′S 8°36′E / 31.4°S 8.6°E |
| Region | ǁKaras Region |
| Country |  Namibia |
| Extent | Sperrgebiet |
  Langental Formation (Namibia) | |
Fossil content
editAmong others, the following fossils are reported from the formation:[3]
- Fish
- Alopecias smithwoodwardi
- Carcharias (Aprionodon) frequens
- Carcharias (Physodon) quartus
- Carcharodon hastalis
- Cestracion vincenti
- Chrysophrys blankenhorni
- Cylindracanthus cf. rectus
- Galeocerdo latidens
- Galeus porrectus, G. robustus
- Isurus desorii
- Labrodon stromeri
- Lamna barnitzkei, L. vincenti
- Myliobatis cf. dixoni
- Notidanus serratissimus
- Odontaspis contortidens, O. macrota, O. winkleri
- Odontorhytis pappenheimi
- Oxypristis ferinus
- Paranarrhichas damesi
- Pimelodus cf. gaudryi
- Rhinoptera rasilis
- Sphyraenodus hastatus
- Squatina prima
See also
editReferences
edit- ^ Langetal Formation at Fossilworks.org
- ^ Dauteuil et al., 2018, p.6
- ^ Bogenfels at Fossilworks.org
Bibliography
edit- Dauteuil, Olivier; Picart, Carole; Guillocheau, François; Pickford, Martin; Senut, Brigitte (2018), "Cenozoic deformation and geomorphic evolution of the Sperrgebiet (Southern Namibia)" (PDF), Communications of the Geological Survey of Namibia, 18: 1–18, retrieved 2018-08-26
Further reading
edit- J. Bohm. 1926. Über Tertiäre versteinerungen von den Bogenfelser diamantfeldern. Beiträge zur geologischen Erforschung der deutschen Schutzgebiete 2:55-87