No current usage.
(†/Mariposa Group (CA) considered an invalid name.)
[Conflicts with several articles in nomenclature guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021).]
(alphabetical) --all in CA: Briceburg Formation, Brushy Canyon Formation, Mariposa Slate.
Late Jurassic
[Type area]: between Stanislaus River and Mariposa Creek, Tuolumne and Mariposa Cos., CA (Taliaferro, 1933).
Sierra Nevada 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 ([ ]).