The Joana Limestone is a limestone geologic formation in White Pine County and Nye County Nevada.
Description The Joana Limestone was named for exposures at the Joana Mine on the south side of Robinson Canyon, 2 miles north of Ely, Nevada.Western Cordillera.com: Joana Limestone (formation)
It was formed during the Early Mississippian series of the Carboniferous Period.
It preserves fossils dating back to the Carboniferous period.
See also
List of fossiliferous stratigraphic units in Nevada Paleontology in Nevada
References