Tarija Concha Formation

The Tarija Concha Formation is a Tremadocian geologic formation of southern Bolivia. The shales and siltstones were deposited in a shallow marine environment.^[1]

Tarija Concha Formation
Stratigraphic range: Tremadocian ~488–479 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Type	Geological formation
Lithology
Primary	Shale, siltstone
Location
Coordinates	21.0°S 65.0°W / -21.0; -65.0
Approximate 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)

Fossil content

The formation has provided the following fossils:

• Bienvillia tetragonalis
• Leptoplastides granulosus
• Apatokephalus sp.

See also

• List of fossiliferous stratigraphic units in Bolivia