Earth:Tarija Concha Formation

Short description: Geologic formation of southern Bolivia

Tarija Concha Formation Stratigraphic range: Tremadocian ~488–479 Ma PreЄ Є O S D C P T J K Pg N
Type	Geological formation
Lithology
Primary	Shale, siltstone
Location
Coordinates
Paleocoordinates	[ ⚑ ] 47.2°S 127.7°W / -47.2; -127.7
Region	Tarija Department
Country	Bolivia
Type section
Named for	Tarija
Tarija Concha Formation (Bolivia)

The Tarija Concha Formation is a Tremadocian geologic formation of southern Bolivia. The shales and siltstones were deposited in a shallow marine environment.

Fossil content

The formation has provided the following fossils:

• Bienvillia tetragonalis
• Leptoplastides granulosus
• Apatokephalus sp.

See also

• List of fossiliferous stratigraphic units in Bolivia

Further reading

• R. Suárez Soruco. 1976. El sistema ordovícico en Bolivia. Revista Tecnica YPF Bolivia 5(2):111-123