Iquiri Formation
Stratigraphic range: Eifelian-Frasnian ~392–377  Ma PreꞒ Ꞓ O S D C P T J K Pg N
Paleogeography of the Late Devonian (380 Ma)
Type	Geological formation
Underlies	Saipurú Formation
Overlies	Los Monos Formation
Lithology
Primary	Black shale
Other	Sandstone
Location
Coordinates	18°00′S65°00′W / 18.0°S 65.0°W / -18.0; -65.0
Approximate paleocoordinates	69°48′S78°36′W / 69.8°S 78.6°W / -69.8; -78.6
Region	Cochabamba Department
Country	Bolivia
Extent	Cordillera Oriental
Iquiri Formation (Bolivia)

The Iquiri Formation is an Eifelian to Frasnian geologic formation of central Bolivia. The formation comprises black shales and sandstones. ^[1]

Contents

• Fossil content
• See also
• References
• Further reading

Fossil content

The formation has provided fossils of Proteolobus walli .

See also

• List of fossiliferous stratigraphic units in Bolivia

References

Further reading

• G. D. Wood. 1997. The acritarch Proteolobus walli gen et sp. nov. from the Devonian Iquiri Formation of Bolivia: a possible coenobial alga. Micropaleontology 43(3):325-331