Usage:
Leeds Creek Member of Twin Creek Limestone (ID*,UT*,WY*)
Leeds Creek Limestone Member of Twin Creek Formation (UT*)
Geologic age:
Jurassic, Middle*
Bathonian, late*
Type section, locality, area and/or origin of name:
Type section: north side of Leeds Creek Canyon, in SW/4 sec. 30, T. 23 N., R. 118 W., and SE/4 sec. 25, T. 23 N., R. 119 W., Lincoln Co., WY. Named from Leeds Creek (Imlay, 1967).
AAPG geologic province:
Yellowstone province*
Uinta basin*
Wasatch uplift*
Snake River basin*
Green River basin*
Uinta uplift*
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 ([ ]).