Unit is named the Kinkead Spring Limestone. Exposed in the northern Antelope Range, NV. Consists of gray, olive-gray, and yellowish-gray, thin bedded to platy echinoderm-bryozoan-brachiopod packstone and grainstone containing clasts composed of peloids, ooids, skeletal fragments, foraminifers, algae, and quartz grains. Contains reworked conodonts of Late Devonian and Early Mississippian age. Was deposited in an open platform marine environment. Sharply and conformably overlies the Davis Spring Formation (new); sharply and unconformably underlies the Antelope Range Formation (new). Thickness is 160 m at the type section but may be more that 220 m because there is a thrust fault in the upper part of the formation. Age is Early Mississippian (middle(?) to late Osagean) based on fossils [conodonts]. (B1565)

Source: GNU records (USGS DDS-6; Menlo GNULEX).