Usage:
Fernwood Member of Topanga Canyon Formation of Topanga Group (CA*-recognized locally east of Malibu Canyon)
Geologic age:
Tertiary
Miocene, middle*
Type section, locality, area and/or origin of name:
Exposures in vicinity of Fernwood, in secs. 18 and 19, T. 1 S., R. 16 W., and in secs. 13 and 24, T. 1 S., R. 17 W., Santa Monica Mountains, Topanga quadrangle, Los Angeles Co., CA (Yerkes and Campbell, 1979).
AAPG geologic province:
Los Angeles 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 ([ ]).