Earth:Etjo Sandstone

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Etjo Sandstone
Stratigraphic range: Early Jurassic
Dinosaurstracks Otjihaenamaparero Namibia.JPG
Dinosaur trace fossil in the Etjo Sandstone
TypeGeological formation
Unit ofEtendeka Group
OverliesOmingonde Fm. (Waterberg Basin)
Doros or Gai-As Formation (Huab Basin)
Thickness140 m (460 ft)
Lithology
PrimarySandstone
Location
LocationDamaraland
Coordinates [ ⚑ ] : 21°24′S 16°42′E / 21.4°S 16.7°E / -21.4; 16.7
Paleocoordinates [ ⚑ ] 30°12′S 8°48′W / 30.2°S 8.8°W / -30.2; -8.8
RegionKunene & Erongo Regions
Country Namibia
ExtentWaterberg Basin
Huab Basin
Damara-Orogen mit Damara-Gürtel, Kaoko-Gürtel und Gariep-Gürtel.png
Geologic map of Namibia with the Etjo Sandstone partly cropping out in the northwestern area (orange)

The Etjo Sandstone is an Early Jurassic geologic formation in northern Namibia. The formation overlies the Omingonde Formation in the Waterberg Basin and the Doros and Gai-As Formations in the Huab Basin and has a total thickness of 140 metres (460 ft).[1] Fossil theropod tracks of Prosauropoda indet., Theropoda indet., Tetrapodium elmenhorsti, Saurichnium anserinum, S. damarense, S. parallelum and S. tetractis have been reported from the formation, deposited in an aeolian environment.[2][3]

See also

  • List of dinosaur-bearing rock formations
    • List of stratigraphic units with theropod tracks
  • List of fossiliferous stratigraphic units in Namibia
  • Geology of Namibia

References

  1. D'Orazi et al., 2015, p.73
  2. Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
  3. Otjihaene-Maparero farm at Fossilworks.org

Bibliography

Bubliography

  • Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. ISBN:0-520-24209-2.