Obispo Formation, Bolivia

Obispo Formation
Stratigraphic range: Dapingian ~478–466  Ma PreꞒ Ꞓ O S D C P T J K Pg N
Type	Geological formation
Lithology
Primary	Shale, siltstone
Location
Coordinates	21°00′S65°00′W / 21.0°S 65.0°W / -21.0; -65.0
Approximate paleocoordinates	45°18′S129°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

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

• List of fossiliferous stratigraphic units in Bolivia

References

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

Further reading

• 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