Langental Formation : Fossil content, Further reading Wikipedia, the free encyclopedia

Langental Formation

Langental Formation
Stratigraphic range: Bartonian-Priabonian ~41–34 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Type	Geological formation
Underlies	Blaubok Conglomerate
Overlies	Silica Beds
Lithology
Primary	Sandstone, siltstone
Location
Coordinates	Langental Formation (Namibia)

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.

Fossil content

Among 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

References

^ Langetal Formation at Fossilworks.org
^ Dauteuil et al., 2018, p.6
^ Bogenfels at Fossilworks.org

Bibliography

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