Usage:
Eldridge Creek Member of Cody Shale (MT*)
Geologic age:
Late Cretaceous (Coniacian)*
Type section, locality, area and/or origin of name:
Not designated. Named from exposures near Eldridge Creek, in NE/4 sec. 27, T. 2 S., R. 8 E., Park Co., MT (Roberts, 1964).
AAPG geologic province:
Montana folded belt*
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 ([ ]).