The Independencia Formation is a Dapingian geologic formation of western-central Bolivia. The dark to bluish gray schists and phyllites (metamorphosed shales) were deposited in an open marine environment.Bajada de Aramani to Caballo Cunca at Fossilworks.org
Fossil content The formation has provided the following fossils:
Didymograptellus protobifidus Phyllograptus anna Pseudophyllograptus angustifolius Notopeltis sp. Michelinoceras sp.
See also List of fossiliferous stratigraphic units in Bolivia
References
Further reading R. Suárez Soruco. 1976. El sistema ordovícico en Bolivia. Revista Tecnica YPF Bolivia 5(2):111-123