Usage:
Wood River Formation of Sun Valley Group (ID*)
Subunits:
(alphabetical) --all in ID: /Eagle Creek Member*, Hailey Conglomerate Member or Hailey Member*, Wilson Creek Member*.
Geologic age:
Pennsylvanian, Middle*
Desmoinesian*
Pennsylvanian, Late*
Missourian*
Virgilian*
Permian, Early*
Wolfcampian*
Leonardian(?)*
Type section, locality, area and/or origin of name:
Not designated; probably named from the Wood River, Blaine Co., ID (Lindgren, 1900).
AAPG geologic province:
Snake River basin*
Idaho Mountains 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 ([ ]).