The Usno Formation is a palaeontological formation located in Ethiopia. It dates to the Pliocene period.[1]

Usno Formation
Stratigraphic range: Pliocene
TypeGeological formation
Unit ofOmo Group
UnderliesKalam Formation
OverliesMursi Formation
Lithology
PrimarySandstone
Location
Coordinates5°18′N 36°00′E / 5.3°N 36.0°E / 5.3; 36.0
Approximate paleocoordinates5°06′N 35°42′E / 5.1°N 35.7°E / 5.1; 35.7
Country Ethiopia
ExtentOmo Subbasin
 Turkana Basin
Usno Formation is located in Ethiopia
Usno Formation
Usno Formation (Ethiopia)

Geology

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Paleofauna

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See also

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References

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  1. ^ Boaz, N. T., Howell, F. C., & McCrossin, M. L. (1982). Faunal age of the Usno, Shungura B and Hadar Formations, Ethiopia. Nature, 300(5893), 633–635. https://doi.org/10.1038/300633A0
  • Vickers-Rich, Patricia & Rich, Thomas Hewett (1993); Wildlife of Gondwana. Reed. ISBN 0-7301-0315-3