Usage:
Ringbone Shale of Bisbee Group (NM*)
Ringbone Formation (NM)
Geologic age:
Late Cretaceous*
Type section, locality, area and/or origin of name:
[Not designated.] Named from Ringbone Ranch, in sec. 15, T. 27 S., R. 16 W., near which formation is best exposed, Eureka district in Little Hatchet Mountains, southwestern NM (Lasky, 1938).
AAPG geologic province:
Pedregosa basin*
Basin-and-Range province*
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 ([ ]).