Usage:
Wildhorse Member of Conejos Formation (CO)
Geologic age:
early Tertiary (early Oligocene; Rupelian)
Type section, locality, area and/or origin of name:
[Type locality]: exposures at north end of Wildhorse Ridge [author's name for cuesta in northern part of eastern San Luis Hills], 1.7 mi east of town of La Sauses [Lasauses], Costilla Co., southwestern CO (Burroughs, 1971; see fig. 1).
[Exposures approx. Lat. 37 deg. 15 min. 45 sec. N., Long. 105 deg. 43 min. 00 sec. W., Lasauses 7.5-min quadrangle.]
AAPG geologic province:
San Luis basin
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates published by U.S. Geological Survey authors.
"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 conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).