The Vila Vila Formation is an Early Devonian (Lochkovian to Pragian) geologic formation of northern Bolivia. The formation comprises a succession of fine-grained sandstones and shales deposited in a shallow to deep marine environment.Vila Vila Formation at Fossilworks.org
Fossil content The formation has provided the following fossils:Wolfart, 1968 Pleurothyrella sp. Scaphiocoelia sp.
See also List of fossiliferous stratigraphic units in Bolivia
References
Bibliography
Further reading G. D. Edgecombe and L. Ramskold. 1994. Earliest Devonian phacopide trilobites from central Bolivia. Paläontologische Zeitschrift 68(3/4):397-410