Usage:
Howells Ridge Formation of Bisbee Group (NM*)
Geologic age:
Early Cretaceous*
Type section, locality, area and/or origin of name:
[Not designated.] Named from high cliff-capped ridge in Eureka section that is composed entirely of rocks of this formation, Little Hatchet Mountains, southwestern NM. Howells Ridge in northern part of T. 28 S., R. 16 W., and in southern part of T. 27 S., R. 16 W. (Lasky, 1938).
AAPG geologic province:
Basin-and-Range province*
Pedregosa 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 ([ ]).