Cudahy Camp Formation of Ricardo Group (CA)
(†Cudahy Camp Formation and †Ricardo Group not used by the USGS.)
Tertiary
Miocene, early
Miocene, middle
Cudahy Camp, in Last Chance Canyon, El Paso basin, Kern Co., CA (Loomis and Burbank, 1988).
Mojave 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 ([ ]).