No current usage.
(†Marin Sandstone Member of Franciscan Formation (CA) abandoned.)
Jurassic and Cretaceous
Named from occurrence on Marin Peninsula, San Francisco region, Marin Co., western CA (Lawson, 1914).
California Coast Ranges 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 ([ ]).