Usage:
McKim limestone (informal, unranked) in Cutler Group (UT-local)
Informal and unranked. The lithologic term should not be capitalized.
Geologic age:
early Permian
Type section, locality, area and/or origin of name:
Forms top of Rico formation on west side of Raplee Ridge and in area of Mexican Hat, San Juan Co., southeastern UT. Name credited to Dunn and Boreing (personal commun.) (Wengerd, 1950).
AAPG geologic province:
Paradox 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 ([ ]).