Usage:
Gros Ventre Formation (ID*,MT*,WY*)
Subunits:
FORMATION STATUS (alphabetical): Death Canyon Member (ID*,WY*), Maurice Member (MT,WY), Park Shale Member (ID,WY*), Wolsey Shale Member (MT,WY*).
Geologic age:
Middle to Late Cambrian*
Type section, locality, area and/or origin of name:
Blackwelder (1918) gives typical detailed section on west slope of Doubletop Peak, Gros Ventre Range, [Teton and Sublette Cos.], northwestern WY (US geologic names lexicon, USGS Bull. 896).
AAPG geologic province:
Bighorn basin
Green River basin*
Snake River basin*
Wind River basin*
Yellowstone 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 ([ ]).