Pogonip Group

The Pogonip Group is an Ordovician period^[3] geologic group located in southern Nevada and in Utah.

Pogonip Group
Stratigraphic range: Early Ordovician stage Ordovician period
Type	Geologic group
Sub-units	Antelope Valley Limestone Ninemile Formation Goodwin Limestone[1]
Underlies	Copenhagen Formation
Overlies	Windfall Formation
Location
Region	Nevada Utah
Country	United States
Type section
Named for	Pogonip Ridge, White Pine County, Nevada[2]
Named by	Clarence King[2]

Geology

Its subunits in Nevada, from youngest/later to oldest/earlier, are:

• Goodwin Limestone — 1,800 metres (5,900 ft) thick
• Ninemile Formation — 550 metres (1,800 ft) thick
• Antelope Valley Limestone — 1,100 metres (3,600 ft) thick

It preserves fossils dating back to the Early Ordovician stage of the Ordovician period.

See also

• List of fossiliferous stratigraphic units in Nevada
• List of fossiliferous stratigraphic units in Utah