Whitehorse Sandstone (KS*,OK*,TX*)
Whitehorse Formation (KS*,OK*)
Whitehorse Group (KS*,OK*,TX*, and CO*-subsurface)
GROUP STATUS (alphabetical): Childress Dolomite [unranked] (TX*-local), Claytonville Dolomite [unranked] (TX*), Eskota Gypsum [unranked] (TX*), Marlow Formation (OK*,TX*), Rush Springs Formation (OK*,TX*) or Rush Springs Sandstone (OK*,TX*).
FORMATION STATUS (alphabetical): Childress Dolomite [unranked] (TX*-local), Claytonville Dolomite [unranked] (TX*), Eskota Gypsum [unranked] (TX*), Kiger Shale Member (KS*), Marlow Sandstone Member (KS*), Relay Creek(?) Dolomite Member (KS).
Middle Permian (Guadalupian)*
Named from Whitehorse Springs, [no longer exists?, local name?; located 1+ mi northeast of Tegarden, in SE/4 NW/4 sec. 21, T. 27 N., R. 16 W., approx. Lat. 36 deg. 48 min. 24 sec. N., Long. 98 deg. 55 min. 47 sec. W., Tegarden 7.5-min quadrangle], Woods Co., northwestern OK (Gould, 1905; see Fay, 1965).
Las Animas arch*
Las Vegas-Raton basin*
Palo Duro basin*
South Oklahoma folded belt*
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates usage by the U.S. Geological Survey. Other usages by state geological surveys.
"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).
Slash (/) indicates name does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).