Llallagua Formation

The Llallagua Formation is a Rhuddanian to Homerian geologic formation of western Bolivia. The formation comprises siliciclastic sediments. The fossil fauna suggests a warm water, nearshore current was active allowing northern hemisphere benthos to exist in the formation.[1]

Llallagua Formation
Stratigraphic range: Rhuddanian-Homerian
~443–428 Ma
TypeGeological formation
UnderliesKirusillas Formation
Lithology
PrimarySandstone
OtherShale
Location
Coordinates17.8°S 64.8°W / -17.8; -64.8
Approximate paleocoordinates46.5°S 127.9°W / -46.5; -127.9
RegionPotosí Department
Country Bolivia
ExtentCordillera Oriental
Type section
Named forLlallagua
Llallagua Formation (Bolivia)

Fossil content

The formation has provided the following fossils:

See also

References

Further reading

  • G. Laubacher, A. J. Boucot, and J. Gray. 1982. Additions to Silurian stratigraphy, lithofacies, biogeography and paleontology of Bolivia and southern Peru. Journal of Paleontology 56(5):1138-1170
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