WThe Devonian Brallier Formation is a mapped bedrock unit in Pennsylvania, Maryland, West Virginia, and Virginia.
WThe Cairn Formation is a geologic formation of Late Devonian (Frasnian) age in the Western Canada Sedimentary Basin. It was named for the Cairn River near its junction with the Southesk River in Jasper National Park by D.J. McLaren in 1955.
WThe Cuche Formation is a geological formation of the Floresta Massif, Altiplano Cundiboyacense in the Eastern Ranges of the Colombian Andes. The sequence of siltstones, shales, and sandstone beds dates to the Late Devonian and Early Carboniferous periods, and has a maximum thickness of 900 metres (3,000 ft).
WThe Duvernay Formation is a stratigraphical unit of Frasnian age in the Western Canadian Sedimentary Basin.
WThe Gogo Formation in the Kimberley region of Western Australia is a Lagerstätte that exhibits exceptional preservation of a Devonian reef community. The formation is named after Gogo Station, a cattle station where outcrops appear and fossils are often collected from, as is nearby Fossil Downs Station.
WThe Horn River Formation is a stratigraphic unit of Devonian age in the Western Canadian Sedimentary Basin.
WThe Iquiri Formation is an Eifelian to Frasnian geologic formation of central Bolivia. The formation comprises black shales and sandstones.
WThe Muskwa Formation is a stratigraphical unit of Frasnian age in the Western Canadian Sedimentary Basin.