Vila Vila Formation

Vila Vila Formation
Stratigraphic range: Lochkovian-Pragian ~416–409 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Type	Geological formation
Lithology
Primary	Sandstone
Other	Shale
Location
Coordinates	15°30′S 68°00′W / 15.5°S 68.0°W / -15.5; -68.0
Approximate paleocoordinates	60°06′S 100°24′W / 60.1°S 100.4°W / -60.1; -100.4
Region	La Paz Department
Country	Bolivia
Extent	Cordillera Oriental
Type section
Named for	Vila Vila
Vila Vila Formation (Bolivia)

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.^[1]

The formation has provided the following fossils:^[1][2]

• Pleurothyrella sp.
• Scaphiocoelia sp.

• List of fossiliferous stratigraphic units in Bolivia

• Wolfart, R (1968), "Die Trilobiten aus dem Devon Boliviens und ihre Bedeutung fuer Stratigraphie und Tiergeographie", Beihefte zum Geologischen Jahrbuch, 74: 5–201

• G. D. Edgecombe and L. Ramskold. 1994. Earliest Devonian phacopide trilobites from central Bolivia. Paläontologische Zeitschrift 68(3/4):397-410