Obispo Formation, Bolivia

Geologic formation in southern Bolivia

Obispo Formation

Stratigraphic range: Dapingian
~478–466 Ma

PreꞒ

Type| Geological formation
Lithology
Primary| Shale, siltstone
Location
Coordinates| 21°00′S 65°00′W﻿ / ﻿21.0°S 65.0°W﻿ / -21.0; -65.0
Approximate paleocoordinates| 45°18′S 129°06′W﻿ / ﻿45.3°S 129.1°W﻿ / -45.3; -129.1
Region| Tarija Department
Country| Bolivia

Obispo Formation, Bolivia (Bolivia)

The Obispo Formation is a Dapingian geologic formation of southern Bolivia. The shales and siltstones were deposited in an open marine environment.[1][2]

## Fossil content

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The formation has provided the following fossils:

* Camerella sp.
* Ceratiocaris sp.
* Didymograptus sp.
* Dinorthis sp.
* Endoceras sp.
* Euorthisina sp.
* Hoekaspis sp.
* Hypermecaspis sp.
* Incorthis sp.
* Megistaspis sp.
* Niobides sp.
* Orthis sp.
* Orthoceras sp.
* Pachendoceras sp.
* Thysanopyge sp.

## See also

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* List of fossiliferous stratigraphic units in Bolivia

## References

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1. ^ San Lucas at Fossilworks.org
2. ^ Molle Punku, Huerta Maya, and Pantipata at Fossilworks.org

## Further reading

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* L. Branisa. 1965. Los fosiles guias de Bolivia: I. Paleozoico. Boletin de Servicio Geologico de Bolivia. La Paz, Bolivia 6:1-282
* A. Pribyl and J. Vanek. 1980. Ordovician trilobites of Bolivia. Rozpravy Ceskoslovenske Akademie Ved. Rada Matematickych a Prirodnich Ved. Academia Praha, Prague, Czechoslovakia 90(2):1-90