Bone Spring Limestone (NM*,TX*)
Bone Spring Formation (NM*,TX*)
early Permian (Leonardian)*
Guadalupe and Delaware Mountains. Named from Bone Spring Canyon, sec. 2, Blk. 66, northwest part of Culberson Co., west-central TX (Blanchard and Davis, 1929).
Permian 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 ([ ]).